Abstract: Process for the preparation of a copolymer of propylene and a C4-12 a-olefin (PPC) having a melt flow rate MFR2 (230° C.) of below 3.0 g/10 mm, wherein the polymerization takes in the presence of a metallocene catalyst.

Abstract: The present invention relates to a process for the introduction of liquid feeds to a polymerisation process, and in particular provides a process for the introduction of a fresh feed selected from fresh comonomer and fresh inert hydrocarbon to a polymerisation reactor, which polymerisation reactor is part of a polymerisation process comprising high and low pressure recovery systems, said high pressure recovery system being at a pressure of 0.5 MPa or above and said low pressure recovery system being at a pressure of less than 0.5 MPa, which process comprises passing said fresh feed and a process stream comprising a first component selected from hydrogen, nitrogen and methane and a second component which is a monomer to a separator which is part of the low pressure recovery system and is at a pressure of 0.

Abstract: A solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support. A process for the polymerization of ethylene with one or more alpha olefin catalyzed by a solid, spheroidal polymerization catalyst having a particle size distribution characterized by a Dm*/Dn of less than 3.0, the catalyst comprising a phosphinimine catalyst, a cocatalyst and a magnesium chloride support.

Abstract: A polymer reactor-blend comprising at least a first component having a polydispersity index of greater than about 20 and is present in an amount of from about 1 wt. % to about 99 wt. % based on the total weight of the polymer and a second component having a polydispersity index of less than about 20 and is present in an amount of from about 1 wt. % to about 99 wt. % based on the total weight of the polymer wherein a molecular weight distribution of the second component lies within a molecular weight distribution of the first component.

Abstract: The present invention provides a hydrophobic alkali soluble emulsion comprising a polymer obtainable by polymerization with the following monomer components: a) from 40 wt. % to 50 wt. %, based on the total weight of the polymer, of an ?,?-ethylenically unsaturated carboxylic acid monomer; b) from 40 wt. % to 50 wt. %, based on the total weight of the polymer, of an ?,?-ethylenically unsaturated nonionic monomer; c) from 5 wt. % to 8 wt. %, based on the total weight of the polymer, of a nonionic macromonomer; and d) from 1 wt. % to 3 wt. %, based on the total weight of the polymer, of a methyl polyglycol acrylic acid ester.

Abstract: A copolymer includes the structure unit represented by the following Chemical formula 1 and the structure unit represented by the following Chemical formula 2, where R1 and R2 each, independently represent hydrogen atoms or methyl groups, and n represents a value in the range of from 1 to 90, where R3 represents a hydrogen atom or a methyl group and L represents an alkylene group having 2 to 18 carbon atoms.

Abstract: A high-transparent, thermoplastically processable polymer composition is described. In an exemplary embodiment, the polymer composition includes an acrylate organic polymer. The acrylate organic polymer is a copolymer that can include functional groups of hydrocarbon group up to nine carbon atoms, hydroalkyl group, halogenated hydrocarbon groups, aminoalkyl group, aryl group, cycloalkyl group, and/or a combination thereof. In addition, the polymer composition includes a polysilicon compound of Formula (II), up to 20% by weight. The polymer composition may further include a polycarbonate polymer, a polyvinyl polymer, a plasticizer, and/or a combination thereof.

Abstract: Provided is a cell adhesion inhibitor which exhibits low cytotoxicity and an excellent cell adhesion prevention effect; a tool and an apparatus each having a surface modified through application of the cell adhesion inhibitor thereto; a method for producing each of the surface-modified tool and apparatus; a biomedical structure and a production method therefor; and a microchannel device and a production method therefor. The invention provides a cell adhesion inhibitor comprising, as an active ingredient, a polymer comprising a repeating unit having a sulfinyl group in a side chain thereof.

Abstract: A composition is provided which includes a polymerizable compound (A) which includes a (meth)acryloyl group and an isocyanate group in a molecule thereof; and a reaction accelerator (B) which is a compound including a (meth)acryloyl group and a halogenated carbamoyl group in a molecule.

Abstract: A polymer comprising recurring units having an acid generator bound to the backbone, and recurring units having an optionally acid labile group-substituted carboxyl group and/or recurring units having an optionally acid labile group-substituted hydroxyl group is obtained by polymerizing corresponding monomers under such illumination that the quantity of light of wavelength up to 400 nm is up to 0.05 mW/cm2. The polymer avoids photo-decomposition of the acid generator during polymerization and concomitant deprotection reaction of the acid labile group when used in positive resist compositions. A pattern with high dissolution contrast and rectangularity is formed after development.

Abstract: The present invention relates to a loop-route production method and system for polyvinyl chloride, and belongs to the intersecting fields of coal chemicals, polymer materials and chemical machinery. Limestone and carbon materials such as coal are reacted in an oxygen-enriched high temperature furnace to obtain calcium carbide and carbon monoxide, and then acetylene and carbon monoxide are respectively produced from calcium carbide and dichloroethane (obtaining ethylene, etc., through methanol or ethanol); both of the end products are combined to form a closed-loop; acetylene and dichloroethane are reacted to produce a vinyl chloride monomer, which is polymerized to obtain polyvinyl chloride.

Abstract: Disclosed is a method for formation of block copolymers using a Single Electron Transfer Living Radical Polymerization (SET-LRP) process. The process can be used to form di and tri-block copolymers from vinyl monomers. In one embodiment the SET-LRP process comprises initially forming a macroinitiator using SET-LRP to form a first block of a di or tri-block copolymer and then using SET-LRP to form additional blocks of the copolymer. The produced block copolymers have very narrow polydispersity indexes and controlled molecular weights. The process permits incorporation of photoinitiators in any of the block formation reactions. The method also includes purification processes that result in a block copolymer having very low color making it useful in a variety of applications. In one application block copolymers prepared according to the present process can be used in hot-melt adhesives.

Abstract: A halogenated latex polymer, comprising from 0 to 90 percent by weight units derived from a first monomer and from 10 to 100 percent by weight units derived from a second monomer having at least one allylic group, wherein 10 to 100 percent of residual allyl groups of the second monomer are halogenated in a latex phase by dilute is provided. Also provided are: (a) a method of making the halogenated latex polymer, (b) a composition comprising the halogenated latex polymer; and (c) a method of making the composition.

Abstract: Disclosed are a vinyl chloride based nanocomposite composition and a method of preparing the vinyl chloride based nanocomposite. According to the present invention, a method of preparing a straight vinyl chloride based nanocomposite having a nanomaterial uniformly dispersed therein, by using the vinyl chloride based nanocomposite composition when a vinyl chloride monomer is suspension polymerized in the presence of a protective colloidal agent and a polymerization initiator after preparing a water dispersion suspension using the vinyl chloride based nanocomposite composition based on a hydrophilic composition is provided.

Abstract: The present invention relates to a poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer having an improved mechanical property and heat resistance, and a method for preparing the same. More particularly, the present invention relates to a poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer, which includes an ethylene-aliphatic diene copolymer as a soft segment and a polystyrene-based polymer grafted to the soft segment as a hard segment, and a method for preparing the same. The poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer has elasticity equivalent to that of SBS or SEBS, and improved mechanical properties such as tensile strength and heat resistance, thereby being used as a substituent for SBS or SEBS.

Abstract: The problem addressed by the present invention is to provide a novel separating medium for hydrophilic interaction chromatography useful in separating hydrophilic compounds. The hydrophilic interaction chromatography separating medium, which is formed from a support and a ligand carried by the support, is a separating medium wherein the ligand is a (meth)acrylic polymer having a constituent unit derived from the compound indicated by formula (I).

Abstract: The present invention relates to novel block copolymers comprising at least one mono vinyl aromatic monomer (also referred to as mono vinylarene) and at least one conjugated diene monomer, in particular to styrene butadiene block copolymers (SBC), with a defined block structure. The invention further relates to polymer blends which comprise at least one block copolymer and at least one mono vinylarene acrylate copolymer, in particular a styrene-methyl methacrylate copolymer. Related methods for preparation and articles prepared from the polymer blends are also provided.

Abstract: The present description relates to an olefin block copolymer having excellences in elasticity and heat resistance and its preparation method. The olefin block copolymer includes a plurality of blocks or segments, each of which includes an ethylene or propylene repeating unit and an ?-olefin repeating unit at different weight fractions. The olefin block copolymer has a density of 0.85 to 0.92 g/cm3, and density X (g/cm3) and TMA (Thermal Mechanical Analysis) value Y (° C.) satisfy a defined relationship.

Abstract: A method for controlling the synthesis of a block copolymer containing at least two blocks, with at least one nonpolar block and at least one polar block, said method making it possible in particular to control the ratio between the blocks and the molecular weight of each of the blocks, said copolymer being a block copolymer intended to be used as a mask in a method of nanolithography by direct self-assembly (DSA), said control being achieved by semicontinuous anionic polymerization in an aprotic nonpolar medium and comprising the following steps: synthesizing a first nonpolar block in the form of a macro-initiator, preparing a solution of said macro-initiator previously synthesized by mixing it with an alkali metal alcoholate in an aprotic nonpolar solvent, preparing a solution of a polar monomer in an aprotic nonpolar solvent, injecting the two solutions previously prepared of macro-initiator and of polar monomer into a micro-mixer, connected to a polymerization reactor, at a constant flow ratio, recover

Abstract: Compositions and methods for forming condensates and resin compositions are provided. In one embodiment, a condensate is formed from a reaction mixture including a triazine monomer, an arylhydroxy monomer, an aldehyde monomer and an acid catalyst having a pKa value of greater than 3.8. The condensates contain up to 28 wt. % of nitrogen and have a melt viscosity of 3,000 cps or less at 175° C. The condensates may have a solubility of at least 80 wt. % solids dissolved in an organic solvent for 120 hours or greater. Also disclosed are methods for the manufacture of the condensate as well as the condensate's use in fire-retardant epoxy resin compositions suitable for the manufacture of laminates for electronic applications. There is also disclosed a glycidylated triazine-arylhydroxy-aldehyde condensate of this invention.

Abstract: The present invention pertains to the technical field of energy resource chemical industry, and in particular relates to a process for producing polyoxymethylene dimethyl ethers by directly using concentrated formaldehyde aqueous solution as feedstock to catalytically react with methanol and/or methylal in a fixed bed reactor. The method of the present invention uses concentrated formaldehyde aqueous solution with a concentration of over 80% by weight to react with methanol and/or methylal, in the presence of an acidic catalyst, to produce the required polyoxymethylene dimethyl ethers.

Abstract: The present invention relates to a method for producing polyisocyanates comprising iminooxadiazinedione groups, wherein at least one monomeric di- and/or tri-isocyanate is oligomerised in the presence of a) at least one catalyst, b) at least one additive (A) having a relative permittivity at 18° C. to 30° C. of at least 4.0, c) optionally further additives other than A. The invention relates further to a reaction system for producing polyisocyanates comprising iminooxadiazinedione groups, and to the use of an additive (A) having a relative permittivity at 18° C. to 30° C. of at least 4.0 for producing polyisocyanates comprising iminooxadiazinedione groups by catalysed modification of monomeric di- and/or tri-isocyanates.

Abstract: The present invention provides a composition obtained by blending a polythiol compound (A), an isocyanate group-containing compound (B) and a radical generator (C), wherein the polythiol compound (A) is at least one compound selected from an aliphatic polythiol and an aromatic polythiol each of which has a thiol group binding to a primary carbon atom and may contain a hetero atom. The present invention thus provides a composition capable of bonding a rubber member, particularly a vulcanized rubber member, strongly, readily and within a short time, an adhesive and an adhesive sheet using the composition, and a laminate produced by bonding a rubber layer using at least one of these adhesive composition and adhesive sheet.

Abstract: A polybutadiene having a hydroxyl group at a terminal end thereof is reacted with a lactone compound such as an ?-caprolactone to obtain a polymer polyol represented by formula (I): HO—X1—Y—X2—OH (wherein X1 and X2 each independently represents a polyester component and Y represents a polybutadiene component), the polymer polyol is reacted with an unsymmetric diisocyanate to obtain a urethane prepolymer, and then the urethane prepolymer is reacted with a chain extender to obtain a polyurethane.

Abstract: Described herein are polyurethane compositions based on natural materials, as well as methods for making and using the compositions. Also described herein are biofoams made from the polyurethane compositions. The biofoams described herein are resistant to degradation by acid and heat and are able to recover their original shapes after the application of pressure.

Abstract: The invention relates to a composition for producing a coating comprising (a) a compound comprising at least two secondary amino functions and (b) isocyanate component comprising an allophanate and a polydunctional isocyanate, and (c) optionally a solvent. The invention also relates to the use of said composition for producing a coating with improved hydrophobicity, and for improving the pot life duration (pot life property) of a formulation for paint or for varnish, or for improving the opening time of a film or a layer resulting from the application of said composition.

Abstract: A one-component type curable composition includes: an isocyanate group-containing urethane prepolymer (A) obtained by allowing a polyoxyalkylene-based polyol (a-1) having a number average molecular weight of 1,000 or more and less than 3,000, a polyol (a-2) having a number average molecular weight of less than 1,000, an epoxy (meth)acrylate (a-3) containing two or more hydroxyl groups in one molecule, and isophorone diisocyanate (a-4) to react with each other; a compound (B) having an oxazolidine ring: a first curing accelerator (C) configured to accelerate a reaction between at least one of a secondary amino group or a hydroxyl group generated by hydrolysis of the (B) and an isocyanate group of the (A); and a second curing accelerator (D) configured to accelerate the hydrolysis of the (B).

Abstract: The present invention provides a two-part mechano-responsive composition, comprising: Part I: a tetra-glycidyl amine multifunctional epoxy resin represented by the general formula (I); and Part II: a polythiol and an amine. The cured composition has a mechano-responsive property without adding any dyes or luminescence agents, and by subjected to mechanical stimuli, the cured composition changes its colour, and the colour is in the visible spectrum range, which can be easily checked with naked eyes; and the colour change is reversible.

Abstract: The present invention relates to a modified oligoester including an oligoester (1) that in one of its ends has a group that reacts with alcohols or organic acids forming covalent bonds and in one or more of its other terminations has one or more cyclic acetal groups (2). In addition, relates to the processes for the production of such modified oligoester, as well as the use of the same in the manufacture of polyester resins, coating compositions, and composite, as well as the process for producing these resins. The scope of the present invention is related to the chemical sector, particularly in what refers to modified oligoesters with cyclic acetal groups.

Abstract: A method for preparing high molecular weight poly(L-lactic acid) with high performance, including: a) providing a biogenic guanidine (BG) as a catalyst, and a nontoxic acid salt of an essential metal trace element as an activator (Act), and adding the catalyst, the activator, and L-lactide monomer to a polymerization reactor; b) evacuating under vacuum and charging the polymerization reactor with nitrogen for three consecutive times to remove air, and allowing the L-lactide monomer to undergo bulk polymerization under vacuum. The bulk polymerization includes a first reaction stage and a second reaction stage, which are separately carried out at different temperatures, pressures, and reaction times.

Abstract: A method of producing an energetic polymer comprises reacting at least one energetic diol with at least one of a diacid halide and a diacid halide derivative to produce a geminal dinitro polyester. A method of producing an energetic binder, and a method of producing an energetic composition are also described.

Abstract: The present invention relates to an alkyd resin as well as to a method for preparing such a resin, said alkyd resin resulting from the polycondensation: of at least one polyacid, preferably biosourced, or its acid anhydride preferably biosourced, of at least one component based on oil, preferably biosourced, or its corresponding fatty acid, preferably biosourced, of at least one polyol, preferably biosourced, having at least two hydroxyl groups, selected from polyols comprising at least one 1,4:3,6-dianhydrohexitol unit, of rosin or of at least one of its derivatives, wherein at least one polyacid is succinic acid, preferably biosourced, or its anhydride, preferably biosourced; and wherein the percentage by dry weight of rosin or its derivatives based on the total dry weight of succinic acid and of its anhydride and of rosin or its derivatives is comprised between about 10% and about 80%.

Abstract: A process for recovering and purifying polyhydroxyalkanoates from a cell culture may include: (a) acidifying the culture to obtain a pH value less than or equal to 6, and submitting the culture to a cell fractionation treatment using high-pressure homogenization at a temperature greater than or equal to 10° C. and less than or equal to 80° C. to obtain a suspension; (b) basifying the suspension to obtain a pH value greater than or equal to 8; (c) diluting the suspension and submitting the diluted PHA suspension to tangential filtration to obtain a concentrated suspension as retentate and an aqueous phase as permeate; (d) submitting the concentrated suspension to bleaching; (e) diluting the suspension after the bleaching and submitting the diluted bleached suspension to tangential filtration to obtain a concentrated bleached suspension as retentate and an aqueous phase as permeate; and/or (f) submitting the concentrated bleached suspension to drying.

Abstract: The present invention relates to a crosslinkable composition comprising at least one crosslinkable component and a latent base crosslinking catalyst, which crosslinkable composition has a solids content of typically at least 55 wt (dry weight after crosslinking relative to the total weight of the crosslinking composition) wherein the latent base catalyst is a substituted carbonate salt according to formula 1 wherein X+ represents a non acidic cation, preferably a quaternary ammonium or phosphonium, and wherein R is hydrogen, alkyl, aryl or aralkyl group. The invention relates in particular to a composition crosslinkable by Real Michael Addition (RMA) reaction wherein a component with at least 2 activated unsaturated groups and a component with at least 2 acidic protons C—H in activated methylene or methine groups, preferably malonate react and crosslink to each other in the presence of the base catalyst.

Abstract: The present disclosure relates to a process for preparing polyester. The process for preparing the polyester essentially involves the preparation of the isosorbide oligomer and the isosorbide polymer from the isosorbide oligomer. The isosorbide oligomer or isosorbide polymer is then co-polymerized with the polyester. The copolymerization isosorbide oligomer or isosorbide polymer may be carried out at any stage of the preparation of the polyester. The polyester obtained in accordance with the process of the present disclosure can be used in packaging applications such as preparing packaging materials or containers. The material or container obtained from the polyester of the present disclosure is capable of withstanding a temperature of 60 to 90° C. without undergoing any deformation and shrinkage. Further, the material or container obtained from the polyester of the present disclosure is transparent or has lower color b* value.

Abstract: In another embodiment, a process of purifying an interfacially polymerized polycarbonate from a feed comprising an aqueous phase and an organic phase comprising an organic solvent, the interfacially polymerized polycarbonate, a catalyst, and ions, can comprise: separating the aqueous phase and the organic phase from the feed, wherein during the separating the feed is subjected to at least one of: energy of less than or equal to 0.5 kJ/kg of feed, a shear rate of less than 150,000 S?1, and centrifugal forces of 100 to 2,000 g-force; to form a purified aqueous phase and a purified organic phase comprising a purified polycarbonate.

Abstract: In an embodiment, a process of purifying a polycarbonate from an interfacial polymerization product mixture comprising an aqueous phase and an organic phase comprising a first organic solvent, the polycarbonate, a catalyst, and ions, the process comprises: separating the aqueous phase and the organic phase to form a separated aqueous feed stream and a separated organic stream; extracting the catalyst and the ions from the separated organic stream to form a purified polycarbonate stream and an extracted aqueous feed stream, wherein at least one of the separated aqueous feed stream and the extracted aqueous feed stream comprise an organic portion and an aqueous portion; purifying an aqueous stream comprising one or both of the separated aqueous feed stream and the extracted aqueous feed stream by adjusting a viscosity of the organic portion to be less than or equal to 40 centipoise by adding a second organic solvent to the aqueous stream to form a combined stream; optionally, adjusting a ratio of the aqueous po

Abstract: The present invention provides a trioxane composition which comprises trioxane as a main component, an antioxidant, and at least one alkaline organic compound selected from the group consisting of an amine compound having an alcoholic hydroxy group in the molecule thereof, a thiocarbamate compound, and an organophosphorus compound, wherein the amount of the alkaline organic compound contained is 0.01 to 10 ppm, based on the trioxane, and wherein the trioxane composition is a liquid.

Abstract: Embodiments of the present disclosure provide for a triptycene-based A-B monomer, a method of making a triptycene-based A-B monomer, a triptycene-based ladder polymer, a method of making a triptycene-based ladder polymers, a method of using triptycene-based ladder polymers, a structure incorporating triptycene-based ladder polymers, a method of gas separation, and the like.

Abstract: A phthalonitrile compound having the formula below. The value n is a positive integer. Each R has a hydrocarbon chain optionally having —O— or —SiR?2—O—. Each R? is an aliphatic group. Each Ar is an aromatic group with the proviso that Ar contains at least two aromatic rings when n is 1 and R is an alkylene group. A method of: reacting an excess of a dihydroxyaromatic compound with a dihalocompound to form an oligomer; and reacting the oligomer with 4-nitrophthalonitrile to form the phthalonitrile compound, where Ar is an aromatic group.

Abstract: Disclosed is a composition having: a diphthalonitrile compound having at least two phthalonitrile groups; a reactive plasticizer; and an amine curing agent. Also disclosed is a composition having: a diphthalonitrile compound having at least two phthalonitrile groups; a nonreactive plasticizer; and an amine curing agent. Also disclosed is a method of: providing a composition having a phthalonitrile compound; heating the composition to a processing temperature until the composition has a viscosity of 30-40 Pa·s at the processing temperature to form a partially cured composition; placing the partially cured composition into a material chamber of an extrusion machine; heating the partially cured composition and the material chamber to within 10° C. of the processing temperature; and extruding fiber from the extrusion machine.

Abstract: Provided are: a transparent polyimide copolymer which satisfies solvent solubility, storage stability, heat resistance, mechanical strength and thermal yellowing resistance at high levels and has excellent utility; a polyimide resin composition; a molded article; and a production method of the copolymer. The transparent polyimide copolymer is obtained by copolymerizing: (A) 4,4?-oxydiphthalic dianhydride and/or 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride; and (B) at least one diamine and/or diisocyanate represented by the following Formulae (1) to (3): (wherein, X represents an amino group or an isocyanate group; R1 to R8 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 2 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and at least one of the R1 to R8 is not a hydrogen atom).

Abstract: A polyimide resin containing a repeating structural unit of the following formula (1), a repeating structural unit of the following formula (2), and a repeating structural unit of the following formula (A) or a repeating structural unit of the following formula (B), a content ratio of formula (1) with respect to the total of formula (1) and formula (2) being from 40 to 70 mol %, and a content ratio of formula (A) or formula (B) with respect to the total of formula (1) and formula (2) being more than 0 mol % and 25 mol % or less: wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 20 carbon atoms; Ra represents a divalent group containing at least one aromatic ring which is bonded to a monovalent or divalent electron-attracting group; Rb represents a divalent group containing —SO2— or —Si(Rx)(Ry)O— wherein Rx and Ry each independently represent a chain aliphatic group

Abstract: A modified bismaleimide resin is made by modify bismaleimide with aromatic diamine that contains fluoro substituents through chain-growth polymerization; and modified bismaleimide resin is excellent in physical properties including a low dielectric constant Dk (3 GHz) less than 3.0, a dissipation factors (3 GHz) less than 0.02, a low resin water absorptivity ranging from 0.21% to 0.33% and an excellent processability, and is particularly suited for producing a copper clad laminate that is required to have dielectric constant Dk (3 GHz) less than 3.

Abstract: Graft polymerization is fullfiled on a functionalized substrate. The functionalized substrate is prepared from a disulfide bond-containing feedstock and has been prepared for polymerization through the introduction of one or more polyfunctional monomers containing a disulfide bond breaking material functional group.

Abstract: A chemical processing article comprising at least one part made of a poly(arylether sulfone) polymeric material comprising at least one poly(arylether sulfone) polymer, wherein said (t-PAES) polymer comprising more than 50% moles of recurring units (Rt) of formula (St): -E-Ar1—SO2—[Ar2-(T-Ar3)n-SO2]m—Ar4 wherein n and m, equal to or different from each other, are independently zero or an integer of 1 to 5, each of Ar1, Ar2, Ar3 and Ar4 equal to or different from each other and at each occurrence, is an aromatic moiety, T is a bond or a divalent group and E is of formula (Et) wherein each of R?, equal to or different from each other, is selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine and quaternary ammonium; j? is zero or is an integer from 1 to 4.

Abstract: Methods of preparing organosilica materials, which are a polymer comprising of at least one independent cyclic polyurea monomer of Formula wherein each R1 is a Z1OZ2Z3SiZ4 group, wherein each Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer unit; each Z2 and Z3 independently represent a hydroxyl group, a C1-C4 alkyl group, a C1-C4 alkoxy group or an oxygen atom bonded to a silicon atom of another monomer unit; and each Z4 represents a C1-C8 alkylene group bonded to a nitrogen atom of the cyclic polyurea are provided herein. Methods of preparing and processes of using the organosilica materials, e.g., for gas separation, color removal, etc., are also provided herein.

Abstract: Disclosed herein are phenolic compounds as replacements for eugenol as end-capping agents in polysiloxanes, such as eugenol-endcapped polysiloxanes that are used to prepare polycarbonate-polysiloxane copolymers.

Abstract: A method of alkoxylating a humus material comprising heating a reaction mixture comprising a humus material, a C3+ cyclic ether, a catalyst and an inert reaction solvent, and recovering a C3+ alkoxylated humus material from the reaction mixture. A method of alkoxylating a humus material comprising heating a reaction mixture comprising a humus material, a C3+ cyclic ether, a catalyst and an inert reaction solvent to a temperature of from about 130° C. to about 170° C., wherein the humus material comprises leonardite, the C3+ cyclic ether comprises propylene oxide, and the inert reaction solvent comprises xylene, and recovering a C3+ alkoxylated humus material from the reaction mixture. A C3+ alkoxylated humus material.

Abstract: The invention provides a method for the manufacture of a gel, said method comprising the steps of: providing a matrix composition comprising a polymeric photoinitiator of the general formula (I): Polymer-[CR2—CHR-Spacer(PI)n]m (I) curing the matrix composition by exposing it to UV radiation and exposing the matrix composition to a swelling medium. The invention also relates to gels obtainable via the above method. The invention provides a hydrophilic gel precursor manufactured from the polymeric photoinitiator of Formula (I). Medical devices comprising the gels and hydrophilic gel precursors of the invention are provided. The invention also provides the use of a polymeric photoinitiator in the manufacture of a gel.