Abstract: Disclosed herein are glycidol-based polymers, nanoparticles, and methods related thereto useful for drug delivery. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: Embodiments described herein relate to compositions, devices, and methods for the alignment of certain materials including liquid crystals. In some cases, a photoresponsive material include a moiety capable of undergoing a di-pi-methane rearrangement. Methods described herein may provide chemically and/or thermally stable alignment materials for use in a various technologies, including transistors, luminescent devices, and liquid crystal devices.

Abstract: An absorbent dressing is described which comprises a crosslinked hydrophilic gel absorbent layer comprising a first component polymer comprising a plurality of polymerized monomer units having pendent hydrophilic groups, and pendent Michael donor groups; and a crosslinking agent comprising at least two Michael acceptor groups.

Abstract: A prosthetic device made of a first specific type of polyarylene, taken alone or in combination with a second specific type of polyarylene, featuring some unexpected advantages such as a very high strength and stiffness, good elongation properties, high chemical resistance, good biocompatibility as well as an outstanding impact resistance.

Abstract: The present invention relates to a copolymer polyester resin and a molded product using the same, and more specifically to a copolymer polyester resin that contains 10˜80 mol % of 1,4-cyclohexane dimethanol, 0.1˜50 mol % of a diol compound expressed as HO—(CH2)a—CO—(CH2)b—OH (where a and b are integers in the range 1˜5), and ethylene glycol or other diols so that the sum of its entire diol composition is 100 mol % based on dicarboxylic acid. The copolymer polyester resin of the present invention enables reduction of cycle time, improvement of product processability and prevention of PET bottle deformation during mold processing with a heat-shrinking label by complementing low temperature shrinkage, maintaining a high shrinkage rate, and reducing shrinkage stress.

Abstract: A polyether ether ketone that is superior in mold flow performance, mechanical physical properties, and thermal stability is provided. A polyether ether ketone having a repeating unit represented by the formula: —Ar—C(?O)—Ar—O—Ar?—O— (wherein, Ar and Ar? represent a substituted or unsubstituted phenylene group), the polyether ether ketone including: (A) a polymerization component having a molecular weight of not lower than 5,000 and lower than 2,000,000; and (B) a polymerization component having a molecular weight of not lower than 1,000 and lower than 5,000, wherein: the weight ratio of (A):(B) is 60:40 to 97:3; the content of (C) a polymerization component having a molecular weight of not lower than 100 and lower than 1,000 is from 0 and less than 0.

Abstract: The invention relates to polyketal compounds. The compounds are synthesized by the selective ketalization of oxocarboxylic acids, e.g. keto acids and semialdehydes, and esters thereof with tetrols and higher polyols that products two or more cyclic ketal ester moieties per molecule, wherein the cyclic ketal moieties are situated in a bis-, tris-, or polyketal conformation. The invention further relates to applications of these compounds and subsequent reactions thereof.

Abstract: A family of carboxylic acid groups containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. Triethyleneoxide side chains provide improved adhesion to materials such as, graphite, silicon, silicon alloy, tin, tin alloy. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current.

Abstract: Provided herein are the polymers shown below. The value n is a positive integer. R1 is an organic group, and each R2 is H or a chemisorbed group, with at least one R2 being a chemisorbed group. The polymer may be a nanostructured film. Also provided herein is a method of: converting a di-p-xylylene paracyclophane dimer to a reactive vapor of monomers; depositing the reactive vapor onto a substrate held at an angle relative to the vapor flux to form nanostructured poly(p-xylylene) film; reacting the film with an agent to form hydrogen atoms that are reactive with a precursor of a chemisorbed group, if the film does not contain the hydrogen atoms; and reacting the hydrogen atoms with the precursor. Also provided herein is a device having a nanostructured poly(p-xylylene) film on a pivotable substrate. The film has directional hydrophobic or oleophobic properties and directional adhesive properties.

Abstract: A method of preparing an oligomeric or polymeric compound in a liquid solution is disclosed which consists of reacting a Michael donor compound with a Michael acceptor compound in the presence of a first catalyst and a Group IA and/or Group IIA metal ion catalyst.

Abstract: Polysulfone based polymer comprising a repeat unit represented by the following Chemical Formula 1 is provided: wherein, X, M1, M2, a, b, c, d, e, f, R1, R2, R3, R4 and n are as defined in the detailed description.

Abstract: A process for oxidizing a composition comprising contacting an alkylbenzene of the general formula (I): where R1 and R2 each independently represents hydrogen or an alkyl group having from 1 to 4 carbon atoms, wherein R1 and R2 may be joined to form a cyclic group having from 4 to 10 carbon atoms, the cyclic group being optionally substituted, and R3 represents hydrogen, one or more alkyl groups having from 1 to 4 carbon atoms or a cyclohexyl group; and (ii) about 0.05 wt % to about 5 wt % of phenol, with oxygen in the presence of a catalyst containing a cyclic imide having the general formula (II): wherein X represents an oxygen atom, a hydroxyl group, or an acyloxy group under conditions effective to convert at least a portion of the alkylbenzene to a hydroperoxide.

Abstract: The present invention provides a novel nanoparticle drug delivery system generated from poly(ortho ester) polymers with sustained drug release capability and can be functionalized to allow for systemic delivery to various organ systems throughout the body. One important aspect of this invention is that the nanoparticle drug delivery system generated from poly(ortho ester) polymers encapsulate several types of drugs in poly(ortho ester) nanoparticles, including but not limited to lipophilic, hydrophilic small and large molecules and also hydrophilic and lipophilic dyes by adopting appropriate emulsion techniques. These poly(ortho ester) nanoparticles are biodegradable, biocompatible and controlled release drug delivery system with zero order kinetics, which can be used in various biomedical applications such as eye-related diseases, cancer, arthritis, etc.

Abstract: In one aspect, the invention relates to polymers, crosslinked polymers, functionalized polymers, nanoparticles, and functionalized nanoparticles and methods of making and using same. In one aspect, the invention relates to degradable polymer and degradable nanoparticles. In one aspect, the invention relates to methods of preparing degradable nanoparticles and, more specifically, methods of controlling particle size during the preparation of degradable nanoparticles. In one aspect, the degradable nanoparticles are useful for complexing, delivering, and releasing payloads, including pharmaceutically active payloads. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Abstract: A sulfonated poly(arylene ether) copolymer that has a crosslinking structure in a chain of a polymer, a sulfonated poly(arylene ether) copolymer that has a crosslinking structure in and at an end of a chain of a polymer, and a polymer electrolyte film that is formed by using them are disclosed. According to the polycondensation reaction of the sulfonated dihydroxy monomer (HO—SAr1-OH), the none sulfonated dihydroxy monomer (HO—Ar—OH), the crosslinkable dihalide monomer (X—CM-X) and the none sulfonated dihalide monomer (X—Ar—X), the poly(arylene ether) copolymer in which the sulfonic acid is included is synthesized. The formed poly(arylene ether) copolymer has the crosslinkable structure in the chain of the polymer. In addition, by carrying out the polycondensation reaction in respects to the crosslinkable monohydroxy monomer or the crosslinkable monohalide monomer, the crosslinking can be formed at the end of the polymer.

Abstract: In a process for producing a cycloalkylaromatic compound, an aromatic compound, hydrogen and at least one diluent are supplied to a hydroalkylation reaction zone, such that the weight ratio of the diluent to the aromatic compound supplied to the hydroalkylation reaction zone is at least 1:100. The aromatic compound, hydrogen and the at least one diluent are then contacted under hydroalkylation conditions with a hydroalkylation catalyst in the hydroalkylation reaction zone to produce an effluent comprising a cycloalkylaromatic compound.

Abstract: There is stably provided a hydrophilic cured product, such as a single-layer film, in which anionic hydrophilic groups are concentrated at a surface that is in contact with the air and which is excellent in transparency and adhesion to a substrate and tends to be rarely cracked. The hydrophilic cured product or single-layer film comprising a resin composition is produced by applying a mixture containing a polyvalent monomer (II) having two or more (meth) acryloyl groups and a compound (IV) having a specific group and a sulfonic acid group to a substrate or the like, drying the mixture if necessary, and then performing polymerization.

Abstract: Cross-linkers and polymers produced using them are provided. The cross-linked polymers are suitable for use in applications where a broad temperature range may be encountered. In some examples, at least a first and a second polyetheretherketone chain may be cross-linked to each other through two or more Schiff base linkages. Articles using the cross-linked polymers are also described.

Abstract: There is provided a polymer compound having excellent transparency and excellent heat resistance, a high refractive index, an excellent solubility in various solvents, and a low viscosity and excellent handling properties when the polymer compound is dissolved in a solvent; and a production method of the polymer compound; and a polymer composition containing the polymer compound. And there is also included an aroylbiphenyl compound of Formula (1): [in Formula (1), X is a halogen atom, and R1 is a hydrogen atom or a group of Formula (2a) or Formula (2b); and in Formula (2a) and Formula (2b), R2 and R3 are independently a hydrogen atom or a C1-6 alkyl group]; a polymer compound obtained by using the aroylbiphenyl compound; and a thermocurable film forming polymer composition comprising: as a component (A), the polymer compound, and as a component (B), a crosslinkable compound.

Abstract: Disclosed herein is a polyarylene-based polymer, a preparation method for the same, and a polymer electrolyte membrane for fuel cell using the polymer. The polyarylene-based polymer, which is designed to have long side chains of a hydrophilic moiety and dense sulfonic acid groups, may improve the formation of ion channels when fabricating a polymer membrane and also ensures good chemical stability of the hydrophilic moiety and good dimensional stability against water. Further, the preparation method of the present invention simplifies production of the polymer, and polymer electrolyte membranes using the polymer exhibits improved properties as a polymer electrolyte membrane for a fuel cell, such as high proton conductivity, even under an atmosphere of low water uptake, and good dimensional stability against a long-term exposure to water.

Abstract: Multifunctional reactive polymers created by chemical vapor deposition (CVD) and methods of making such polymeric systems are provided. Such polymers provide multifunctional surfaces which can present two or more different molecules (e.g. biological ligands) in controlled ratios. Polymers may include compositional gradients allowing attached ligands to be presented as continuous gradients across a surface. The polymer compositions are modularly designable and applicable to a wider range of applications, including biomedical devices and diagnostic systems.

Abstract: A diaphragm for electro-acoustic transducers, especially a diaphragm for speakers, and a film for the diaphragm excellent in the formability and the durability in high-output operation are obtained. A diaphragm for electro-acoustic transducers formed of a film that contains a polybiphenyl ether sulfone resin (A) having a specific repetitive unit or contains it and a crystalline resin (B) such as polyaryl ketone resin; and a film for use for the diaphragm.

Abstract: The present invention relates to biodegradable biocompatible polyketals, methods for their preparation, and methods for treating animals by administration of biodegradable biocompatible polyketals. In one aspect, a method for forming the biodegradable biocompatible polyketals comprises combining a glycol-specific oxidizing agent with a polysaccharide to form an aldehyde intermediate, which is combined with a reducing agent to form the biodegradable biocompatible polyketal. The resultant biodegradable biocompatible polyketals can be chemically modified to incorporate additional hydrophilic moieties. A method for treating animals includes the administration of the biodegradable biocompatible polyketal in which biologically active compounds or diagnostic labels can be disposed. The present invention also relates to chiral polyketals, methods for their preparation, and methods for use in chromatographic applications, specifically in chiral separations.

Abstract: Poly(sulfoaminoanthraquinone) polymer compositions and methods of making these compositions are disclosed herein. The polymer compositions can, for example, be used for removing metal ions from a sample.

Abstract: Disclosed is a polymer which has a repeating unit containing a skeleton derived from dehydroabietic acid in the main chain, and has a glass transition point of 80° C. or lower.

Abstract: An object of the invention is to provide a polymer compound having a high hole transport capacity, excellent in electrochemical stability, and suitable to film formation according to a wet film formation method. Another object of the invention is to provide an organic electroluminescence element having a high current efficiency, a low drive voltage, and a long derive lifetime. The polymer compound has a crosslinking group bonding to the arylamine moiety in the repeating unit via at least one single bond therebetween.

Abstract: Amphiphilic triblock copolymers B-A-B, wherein A is a linear poly(ethylene glycol) block, having a number average molecular weight (Mn) of between 900 and 3000 Daltons, determined with size exclusion chromatography; wherein B are hydrophobic blocks with at least two cyclic monomers selected from the group consisting of glycolide, lactide, 1,3-dioxan-2-one, 5,5-dimethyl-1,3--dioxan-2-one, 1,4-dioxan-2-one, 1,4-dioxepan-2-one, 1,5-dioxepan-2-one, each B-block having a number average molecular weight (Mn) of between 400 and 2000 Daltons, determined with size exclusion chromatography; and wherein 25% to 100% of the polymer hydroxyl end-groups are covalently modified with at least one derivative of a C2-C20 fatty acid. The invention also relates to compositions with such polymers and the use thereof.

Abstract: Disclosed herein is a proton-conducting polymer and uses thereof and, more particularly, a hydrocarbon-based proton-conducting polymer derived from a monomer having a multi-naphthyl group and comprising a plurality of acid groups on the side chain of the repeating unit, an electrolyte membrane comprising the polymer, a membrane-electrode assembly comprising the electrolyte membrane, and a fuel cell comprising the membrane-electrode assembly.

Abstract: The present invention provides an electrode active material for an electricity storage device, having a structure represented by following formula (1). In the formula (1), R1 to R6 each denote independently a hydrogen atom (except for a case where all of R1 to R6 denote hydrogen atoms), a halogen atom, an optionally substituted phenyl group, an optionally substituted heterocyclic group, or an optionally substituted hydrocarbon group having 1 to 4 carbon atoms.

Abstract: A polymer compound containing a structure of the following formula (B): —Ar—??(A) (wherein, Ar represents an arylene group, divalent heterocyclic group, divalent aromatic amine group or divalent group having a metal complex structure.) (wherein, A ring and B ring represent each independently an aromatic ring optionally having a substituent. X1 represents —C(?O)—, —S(?O)—, —S(?O)2—, —P(?O)(R1)—, —C(R1)(R2)—, —C(R2)(R2)—, —B(R1)—, —N(R1)— or —Si(R1)(R1)—. R* represents a hydrogen atom or monovalent or divalent group, R1 represents a hydrogen atom or monovalent group, and R2 represents a monovalent group having a hetero atom. When R1 and R2 are present each in plural number, they may be the same or different.).

Abstract: A polymer represented by the following Formula 1, and a membrane-electrode assembly and a fuel cell system including the polymer: In the above Formula 1, definitions of the substituents are the same as in described in the detailed description.

Abstract: The present invention relates to a sulfonated poly(arylene ether) copolymer, a manufacturing method thereof and a polymer electrolyte membrane for fuel cell using the same.

Abstract: The present invention relates to a bioactive composition obtained through the technique of electrospinning and composed of at least one polymer. Furthermore, the invention also discloses a process for the incorporation of such electrospun bioactive composition, as a coating over a plastic matrix to obtain composite materials for their use in both biodegradable and non-biodegradable biomedical implants and in tissue engineering.

Abstract: The invention provides novel flame-retardant polymers and materials, their synthesis and use. More particularly, the flame-retardant polymers are deoxybenzoin-derived polymers.

Abstract: The present invention relates to a sulfonated poly(arylene ether) copolymer, a manufacturing method thereof and a polymer electrolyte membrane for fuel cell using the same.

Abstract: Internal components of plasma reactors are composed of a toleratable, ceramic filled plasma-useful polymer such as a high temperature engineering thermoplastic, preferably a polyamideimide. The parts exhibit a low erosion rate upon exposure to plasma at low pressure.

Abstract: The invention concerns processes for the production of multiarmed star copolymers comprising polymerizing vinyl chloride with a multifunctional initiator in the presence of Na2S2O4 and water. The invention also concerns polymers made from the processes and articles made from the polymers.

Abstract: The present invention provides biodegradable particles (e.g., three-dimensional particles) and micelles which can be used to encapsulate active agents for delivering to a subject. The present invention further provides methods for producing and delivering such particles and micelles. Additionally, the invention provides vaccination strategies that encompass the use of the novel particles and micelles.

Abstract: A proton conducting hydrocarbon-based polymer has acid groups on side chains attached to the main chain, where the acid groups are between 7 and 12 atoms away from the main chain. Another polymer includes a semi-fluorinated aromatic hydrocarbon main chain and side chains that include at least one —CF2— group and an acid group. Another polymer includes an aromatic hydrocarbon main chain and side chains that include at least one —CH2-CF2— group and an acid group. Another aromatic polymer includes acid groups attached to both the main chain and the side chains where less than about 65 weight percent of the acid groups are attached to the side chains. Another aromatic polymer includes side chains attached to the main chain that include at least one aryl ring, and acid groups attached to both the main chain and to the aryl groups. Another polymer includes an aliphatic hydrocarbon main chain, side chains that include at least one deactivating aryl ring, and acid groups attached to the deactivating aryl rings.

Abstract: Disclosed herein is a polyhydroxy ketal adduct obtained by the esterification of a hydrocarbon polyol by at least 1.5 equivalents of a ketocarboxy to produce an intermediate ketocarboxylic ester. The intermediate polyketocarboxylic ester is then ketalized to produce the polyhydroxyketal adduct, which can be used to provide a polymeric composition.

Abstract: A membrane-electrode assembly includes a polymer electrolyte membrane with an anode and a cathode on opposite sides. Each of the anode and the cathode includes an electrode substrate, and a catalyst layer is formed on at least one of the electrode substrates and includes at least one proton conductive crosslinked polymer. The membrane-electrode assembly may include catalyst layers that are positioned on opposite sides of a polymer electrolyte membrane, either of which includes at least one crosslinked proton conductive polymer.

Abstract: Provided are hyperbranched poly(ether-ketone)-based nanocomposites with the following generic formula: wherein n is the degree of polymerization and R is carboxylic acid (COOH) and various functional groups that could be derived from COOH, such as benzothiazole, benzoxazole, benzimidazole, esters, and amines. Also provided are a process for preparing the above composite and a chain-end conversion methodology to tailor thermal and solubility properties.

Abstract: A membrane-electrode assembly for solid polymer electrolyte fuel cell that exhibits superior dimensional stability to high temperature of hot water generated on power generation, and that has both excellent power generation performance and durability in a low temperature environment is provided. According to the membrane-electrode assembly for solid polymer electrolyte fuel cell in which a polyarylene-based copolymer having a specific repeating constitutional unit is used as a proton conductive membrane, the membrane-electrode assembly for solid polymer electrolyte fuel cell that exhibits superior dimensional stability to high temperature of hot water generated on power generation, and that has both excellent power generation performance and durability in a low temperature environment can be provided.

Abstract: Deoxybenzoin-phosphonate and other copolymer compounds, compositions and related methods.

Abstract: The invention relates to a method for producing polyfluoroanthenes containing repeat units of general formula (I), said method consisting of the following steps: a) a monomer fluoroanthene derivative of formula IIa is produced; b) optionally the monomer fluoroanthene derivative of formula IIa is converted into another monomer fluoroanthene derivative of formula IIb; and c) the monomer fluoroanthene derivative of formula IIa or IIb is polymerised, optionally together with at least one other comonomer. The invention also relates to polyfluoroanthenes that can be produced according to the inventive method, films, a light-emitting layer containing or consisting of at least one inventive polyfluoroanthene, OLEDs containing at least one inventive polyfluoroanthene, OLEDs containing an inventive light-emitting layer, a device containing an inventive OLED, and the use of the inventive polyfluoroanthene emitter substances in OLEDs.

Abstract: 1,3-Dipole-functional compounds (e.g., azide functional compounds) can be reacted with certain alkynes in a cyclization reaction to form heterocyclic compounds. Useful alkynes (e.g., strained, cyclic alkynes) and methods of making such alkynes are also disclosed. The reaction of 1,3-dipole-functional compounds with alkynes can be used for a wide variety of applications including the immobilization of biomolecules on a substrate.

Abstract: An object of the invention is to provide a fluorine-containing polymer that is superior in both stability against doping of oxygen and solubility in an organic solvent. The invention provides a fluorine-containing polymer including a structure represented by formula (I) in a repeating unit. wherein R1 and R2 are the same or different and each mean a hydrogen atom, a halogen atom, or a monovalent group.

Abstract: A PBI compound includes imidazole nitrogens at least a portion of which are substituted with a moiety containing a carbonyl group, the substituted imidazole nitrogens being bonded to carbon of the carbonyl group. At least 85% of the nitrogens may be substituted. The carbonyl-containing moiety may include RCO—, where R is alkoxy or haloalkyl. The PBI compound may exhibit a first temperature marking an onset of weight loss corresponding to reversion of the substituted PBI that is less than a second temperature marking an onset of decomposition of an otherwise identical PBI compound without the substituted moiety. The PBI compound may be included in separatory media. A substituted PBI synthesis method may include providing a parent PBI in a less than 5 wt % solvent solution. Substituting may use more than 5 equivalents in relation to the imidazole nitrogens to be substituted.

Abstract: Medical device (?) comprising at least one part (?) consisting of a polymer material (M) comprising at least one kinked rigid-rod polyarylene (P) of which more than 50 wt. % of the recurring units are recurring units (R) of one or more formulae consisting of an optionally substituted arylene group which is linked by each of its two ends to two other optionally substituted arylene groups via a direct C—C linkage. The recurring units (R) are a mix (?) consisting of (i) between 0 and 75 mole %, of rigid rod-forming arylene units (Ra) and (ii) between 25 and 100 mole % of kink-forming arylene units (Rb), both contents being based on the total number of moles of the recurring units (R). Arylene units (Ra) and/or (Rb) may be optionally substituted by at least one monovalent substituting group.

Abstract: This invention relates to the composition and a solvent-free process for preparing novel imide oligomers and polymers specifically formulated with effective amounts of a dianhydride such as 2,3,3?,4-biphenyltetra carboxylic dianydride (a-BPDA), at least one aromatic diamine and an endcapped of 4-phenylethynylphthalic anhydride (PEPA) or nadic anhydride to produce imide oligomers that possess a low-melt viscosity of 1-60 poise at 260-280° C. When the imide oligomer melt is cured at about 371° C. in a press or autoclave under 100-500 psi, the melt resulted in a thermoset polyimide having a glass transition temperature (Tg) equal to and above 310° C. A novel feature of this process is that the monomers; namely the dianhydrides, diamines and the endcaps, are melt processable to form imide oligomers at temperatures ranging between 232-280° C. (450-535° F.) without any solvent.