Abstract: An object of the present invention is to provide a polylactic acid composition having specific thermal characteristics and gas barrier properties, and to obtain a molding comprising a polylactic acid composition of PLLA and PDLA capable of forming a polylactic acid stretched film or other molding having superior surface smoothness, transparency, heat resistance and toughness, and the constitution thereof is characterized by being a molding comprising a polylactic acid composition in which the peak in DSC measurement during cooling (at a rate of 10° C./min) after allowing to remain at 250° C. for 10 minutes is 30 mJ/mg or more, and preferably comprising a polylactic acid composition such that, in measurement during the DSC 2nd heating (cooling at a rate of 10° C./min after allowing to remain at 250° C. for 10 minutes followed by reheating from 0° C. at a rate of 10° C./min), the peak ratio (peak 1/peak 2) of the peak when Tm is 150 to 180° C. (peak 1) to the peak when Tm is 200 to 240° C. (peak 2) is 0.

Abstract: Materials based on low melt polyimide, polyurea, or polyurethane chemistry have been developed which exhibit self-healing properties. These high performance polymers can be utilized either by themselves or in combination with microcapsule technology to deliver self-healing properties to electrical wire insulation or in other high performance, thin wall technologies such as inflatable structures.

Abstract: Provided in this invention are polyethylene terephthalate resins which can suppress the formation of acetaldehyde as a by-product in melt molding of the resins and can provide the molded products reduced in acetaldehyde content. A polyethylene terephthalate resin which has an intrinsic viscosity [?2] of not less than 0.70 dl/g and not more than 1.50 dl/g and an acetaldehyde content [AA0 (ppm by weight)] of not more than 10 ppm by weight, and has such properties that the acetaldehyde content [AA1 (ppm by weight)] of the molded product obtained by injection molding the resin at 280° C. with its moisture content adjusted to 30±20 ppm by weight and the acetaldehyde content [AA2 (ppm by weight)] of the molded product obtained by injection molding the resin at 280° C. with its moisture content adjusted to 120±20 ppm by weight satisfy the following formula (1): [(AA1?AA2)/AA1]×100?30??(1).

Abstract: Disclosed are unsaturated polyester resins comprising residues of 1,2-propanediol, 2,2,4,4-tetramethyl-1,3-cyclobutanediol, an aliphatic, cycloaliphatic, or aromatic diacid, and 2-butenedioic acid. Also disclosed are curable compositions containing admixtures of the unsaturated polyesters and aromatic vinyl compounds copolymerizable with the unsaturated polyesters, and coatings and casted and molded articles obtained from the curable compositions. The curable compositions are useful for coatings and casted and molded articles that have at least one surface that is persistently exposed to organic or aqueous liquids.

Abstract: A silane-functional polyester of formula (I): wherein Y is an n-valent residue of a polyester P which is solid at room temperature and terminated by hydroxy groups, after removal of n hydroxy groups; R1 is a linear or branched, monovalent carbon residue having 1 to 12 carbon atoms, optionally having one or more C—C multiple bonds and/or having optionally cycloaliphatic and/or aromatic portions; R2 is an acyl residue or a linear or branched, monovalent hydrocarbon residue having 1 to 12 carbon atoms, optionally having one or more C—C multiple bonds and/or having optionally cycloaliphatic and/or aromatic portions; R3 is a linear or branched, divalent hydrocarbon residue having 1 to 12 carbon atoms, optionally having cyclic and/or aromatic portions, and optionally having one or more heteroatoms; the index a has a value of 0, 1 or 2; and the index n has a value of 1 to 3.

Abstract: A copolymer is described which is prepared by reacting a polyphenylene having two terminal coupling groups X1 and X2 with a flexible chain component which has a flexible chain having two terminal coupling groups Y1 and Y2. A high modulus of elasticity, high media resistance, and cost-effective, large-scale production may be achieved in that the flexible chain has a chain length of less than or equal to 95 chain atoms, and each of coupling groups X1 and X2 reacts with one of coupling groups Y1 and Y2, forming a bond selected from the group composed of carboxylic acid amide, carboxylic acid ester, carboxylic acid imide, urethane, carbonate, urea, thiourea, sulfonic acid amide, sulfonic acid ester, imidazole, oxazole, thiazole, oxazoline, imidazoline, amine, ether, and thioether bonds.

Abstract: A polymer composition, stretched and unstretched articles and processes to make stretched and unstretched articles from that composition are set forth wherein the composition comprises a blend of a polyamide wherein the amino to carboxyl end group ratio of the polyamide polymer is less than 1.0 when the relative viscosity of the polyamide polymer is less than 2.0, and less than 0.30 when the relative viscosity is in the range of 2.0 to 2.3 and less than 0.20 when the relative viscosity is greater than 2.3, a crystallizable polyester and an interfacial tension reducing agent.

Abstract: Powder compositions and articles and methods of forming articles from powder compositions are provided. In one embodiment the powder compositions include at least one polyester polymer powder and an amount of reinforcing particles having an aspect ratio of preferably at least about 5:1. In another embodiment the powder compositions include at least one medium-high melting temperature, aromatic and crystalline polyester polymer powder. In a preferred embodiment, the powder composition is capable of being formed, via a laser sintering process, into a three-dimensional article that exhibits one or more desirable mechanical properties in an elevated temperature environment.

Abstract: Substrates, optionally coated with an undercoating, having grafted thereto one or more non-fouling materials are described herein. The non-fouling, polymeric material can be grafted to a variety of functionalized substrate materials, particularly polymeric substrates and/or polymeric undercoatings immobilized on a substrate. The compositions described herein are highly resistant protein absorption, particularly in complex media and retain a high degree of non-fouling activity over long periods of time. The compositions described herein may also demonstrate antimicrobial and/or anti-thrombogenic activity. The non-fouling material can be grafted to a functionalized substrate, or optionally from an undercoating on the substrate, preferably without significantly affecting the mechanical and/or physical properties of the substrate material.

Abstract: A protective polymeric coating is applied to the surface of various objects which are to be exposed to a harsh environment. The protective polymeric coating covers the exposed surface, where the polymeric coating includes a polyimide polymer. The polyimide polymer in the polymeric coating has a backbone with at least one non-terminal phenyl group. A linkage is connected to the non-terminal phenyl group, where the linkage can be an amide linkage or an ester linkage. An oligomeric silsesquioxane compound is connected to the linkage through an organic substituent, where the oligomeric silsesquioxane is not incorporated into the polymer backbone. The polymeric coating provides protection to the underlying object.

Abstract: The present invention relates to an optical film, comprising a copolymer that comprises (a) a (meth)acrylic monomer, (b) an aromatic vinyl monomer, (c) at least one monomer of an acid anhydride monomer and an unsaturated organic acid monomer, and (d) a vinylcyan monomer, a protection film for a polarizer, a polarizing plate fabricated therefrom, and a display device employing the same.

Abstract: The present invention relates to macroinitiators comprising at least one hydrophobic segments in a molecule, wherein a molecular weight of the hydrophobic segment is 300 to 1800. The present invention further relates to block copolymers, wetting agent and polymeric materials having the block copolymers of the present invention associated with, which is suitable for medical devices, particularly for ophthalmic devices, including contact lenses, ophthalmic lenses, punctal plugs and artificial corneas.

Abstract: A multi-arm polyethylene glycol (I) having different kinds of reactive groups and the uses thereof are disclosed, which is formed by polymerizing ethylene oxide with oligo-pentaerythritol as an initiator, wherein, PEG is same or different and is —(CH2CH2O)m-, the average value of m is an integer of 2-250; I is an integer of 1 or more. The method for producing the multi-arm polyethylene glycol having different kinds of reactive groups, the multi-arm polyethylene glycol active derivatives comprising linking groups X attached to PEG and terminal reactive groups F attached to X, the gels formed by the multi-arm polyethylene glycol active derivatives, the drug conjugates formed by the multi-arm polyethylene glycol active derivatives and drug molecules, and the uses thereof in preparing drugs are also disclosed.

Abstract: New monomers, polymers, and blends of polymers with an electron acceptor are provided, e.g., for use in a photovoltaic device. The electron acceptor can be a fullerene derivative and the polymer can comprise monomer units according to the formula: wherein L? is L-C(O)O-J, L-C(O)NR?-J, L-OCO-J?, L-NR?CO-J?, L-SCO-J?, L-O-J, L-S-J, L-Se-J, L-NR?-J or L-CN; L is a linear or branched alkylene group having from 1 to 10 carbon atoms; J is a hydrogen atom or a linear or branched alkyl group having from 1 to 4 carbon atoms; J? is a group having from 1 to 10 carbon atoms, being saturated or unsaturated, linear or branched, optionally comprising a phenyl unit; and R? is a hydrogen atom or a linear or branched alkyl group having from 1 to 4 carbon atoms.

Abstract: A particulate polyglycolic acid resin composition, comprising: a blend of a first particulate polyglycolic acid resin and a second particulate polyglycolic acid resin each having a moisture content of at most 110 ppm and providing a ratio of melt-viscosity (as measured at 270° C. and a shear rate of 121 sec?1; the same as hereinafter) therebetween of above 1 and at most 10. After the polymerization, the first and second particulate polyglycolic acid resins can cause change in properties before the forming (e.g., during storage); or during the forming process. However, by adequately determining the blending ratio between the resins while taking the melt-viscosities thereof into account, it becomes possible to provide a particulate polyglycolic acid resin composition showing a stable melt-formability and suitable as a starting material for various forming processes.

Abstract: An aircraft component wherein the component is a partition or a light cover, and wherein the aircraft component is molded or formed from a thermoplastic polymer composition including: a siloxane-containing copolymer in an amount effective to provide a total of 0.2 to 6.5 wt % of siloxane units based on the total weight of the polymers in the thermoplastic polymer composition, a bromine-containing polymer in an amount effective to provide 9 to 13 wt % of bromine, based on the total weight of the polymers in the thermoplastic polymer composition, and optionally a third polymer, wherein the wt % of the siloxane-containing copolymer, the bromine-containing polymer, and the optional third polymer, sum to 100 wt %, and 0.05 to 10 wt % of a light diffuser additive, based on the total weight of polymers in the thermoplastic polymer composition.

Abstract: A low temperature thermoplastic material is provided. The components include in weight parts: polyurethane with a melting point of 50-70° C. 90-10 parts, poly(?-caprolactone) 0-90 parts and cross linking co-agent 0.1-6 parts. Compared with the prior poly(?-caprolactone) low temperature thermoplastic material, the present low temperature thermoplastic material has a smaller shrinking force and a better fastening intensity, is more comfortable and can be stretched more uniformly after moulding. Therefore, the material is suitable for hospital and other radiotherapy institution and can be used compatibly with three-dimensional conformal radiotherapy equipments in tumor surgery.

Abstract: A process for the solid phase continuous polymerization of polyester in order to achieve a molecular weight increase, measurable by the intrinsic viscosity IV increase of the polyester, wherein the use of at least a reactor (15) is provided, the reactor (15) being cylindrical, rotary around its own central axis (S), substantially horizontal, slightly inclined so as to produce the polymerization of the polyester granules passing through the reactor by gravity thanks to the inclination and the rotation of the reactor (15), inside the reactor there being produced a purge gas flow having the same or the opposite direction with respect to the flow of the polyester granules.

Abstract: Hydrophilized compositions including normally hydrophobic thermoplastic polymers, e.g., polypropylene, and hydrophilizing amounts of anionic surfactants, e.g., sodium alkylsulfonates, are shaped into such articles as molded objects having hydrophilic surfaces.

Abstract: The invention relates to a curable composition comprising one or more epoxy compounds, one or more anionically curing catalysts, and an addition of one or more dendritic polymers, selected from the group consisting of the dendritic polyester polymers, the dendritic polyesteramide polymers, and the dendritic polymers based on 1,3,5-tris-alkanol-substituted cyanuric acid. These dendritic polymers improve mechanical properties, in particular the toughness of the cured epoxy resin.

Abstract: An intermediate transfer member includes a poly(amic acid amideimide), or a mixture of a poly(amic acid amideimide), a phosphate ester, an optional polysiloxane, and an optional conductive filler component.

Abstract: Disclosed are a medical instrument and a medical material each comprising an aliphatic polyester resin composition, which are hardly reduced in strength and impact resistance upon the sterilization by ionizing radiation or have excellent shape-retaining properties after a heat treatment. Specifically, a medical instrument and a medical material both sterilized by ionizing radiation are provided, each of which contains a biodegradable resin and a polycarbodiimide compound in an amount of 0.1 to 10% by weight on the resin. The biodegradable resin is polybutylene succinate, a copolymer of polybutylene succinate, or a mixture of polybutylene succinate and a copolymer of polybutylene succinate with polylactic acid or poly(3-hydroxyalkanoate). A method of producing such medical instrument and medical material is also provided.

Abstract: Cleavable, disulfide-coupled block copolymers as can be used in the preparation of nanoporous thin films, micellar configurations and related structures.

Abstract: The present invention is directed to branched reactive water-soluble polymers comprising at least two polymer arms, such as poly(ethylene glycol), attached to a central aliphatic hydrocarbon core molecule through ether linkages. The branched polymers bear at least one functional group for reacting with a biologically active agent to form a biologically active conjugate. The functional group of the branched polymer can be directly attached to the aliphatic hydrocarbon core or via an intervening linkage, such as a heteroatom, -alkylene-, —O-alkylene-O—, -alkylene-O-alkylene-, -aryl-O—, —O-aryl-, (—O-alkylene-)m, or (-alkylene-O—)m linkage, wherein m is 1-10.

Abstract: Inventive composite materials are provided. The composite is preferably a nano-composite, and comprises an asphaltene, or a mixture of asphaltenes, blended with a polymer. The polymer can be any polymer in need of altered properties, including those selected from the group consisting of epoxies, acrylics, urethanes, silicones, cyanoacrylates, vulcanized rubber, phenol-formaldehyde, melamine-formaldehyde, urea-formaldehyde, imides, esters, cyanate esters, allyl resins.

Abstract: Disclosed is a composition for forming a board. The composition includes a maleimide-based compound including at least three maleimide groups and a liquid crystalline polymer or oligomer. A prepreg and a board are each fabricated using the composition.

Abstract: The light diffusion member includes a light diffusing body and a light diffusing layer. The light diffusing body includes a polymer mixture obtained by uniformly blending a first polymer having a first glass transition temperature and a second polymer having a second transition temperature higher than the first transition temperature. Alternatively, the light diffusing body includes a copolymer prepared from the first and the second polymer. The light diffusing body diffuses an incident light through a light exiting surface. The light diffusing layer is formed on the light exiting surface of the light diffusing body and includes a binder resin having beads. A back light assembly including the light diffusion member and a liquid crystal display device including the light diffusion member exhibit an improved luminance and an improved light diffusing efficiency.

Abstract: The present invention relates to novel methods of synthesis and isolation of dendrimer systems. In particular, the present invention is directed to novel dendrimer conjugates with defined and limited numbers of ligand conjugates and high levels of structural uniformity, methods of synthesizing the same, compositions comprising the conjugates, as well systems and methods utilizing the conjugates (e.g., in diagnostic and/or therapeutic settings (e.g., for the delivery of therapeutics, imaging, and/or targeting agents (e.g., in disease (e.g., cancer) diagnosis and/or therapy, pain therapy, etc.)).

Abstract: Disclosed is a fibrous formed article having excellent hydrophilicity, which contains a hydrophobic polymer and amphiphilic molecules and has an average fiber diameter of 0.05 to 50 ?m, the amphiphilic molecules segregating to the fiber surface.

Abstract: To provide a therapeutic method using a water soluble, high molecular weight block polymer to enable that an intraperitoneally administered anti-cancer agent may maintain for a long-term retention in the abdominal cavity to enoughly exert the effect of the anti-cancer agent and reduce adverse side-effects thereof. A therapeutic agent as a micelle preparation, comprising a copolymer having a hydrophilic polymeric moiety and a polycarboxylic acid derivative moiety; and an anti-cancer agent bonding to or encapsulated in the copolymer, wherein the micelle preparation may exhibit sustained drug release capability, and enables an extension of a retention time period of the anti-cancer agent in an abdominal cavity, is provided. A superior life-prolonging effect was found in an intraperitoneal administration mouse model compared with a case in which only an encapsulated drug is administered, and thus the present invention was completed accordingly.

Abstract: The present invention has an object to provide a pressure-sensitive adhesive composition that provides a polyester-based pressure-sensitive adhesive capable of realizing both of heat resistance and adhesive force at high levels and a pressure-sensitive adhesive sheet having a polyester-based pressure-sensitive adhesive. The pressure-sensitive adhesive composition provided by the present invention contains a polyester resin A with Mw of 4×104 to 12×104 and a polyester resin B with Mw of 0.3×104 to 1×104. The ratio (mA:mB) of the number of moles mA and mB of the polyester resins A and B is 1:0.35 to 1:1.4. The pressure-sensitive adhesive composition further contains a crosslinking agent, and has a gel fraction after crosslinking of 30 to 65%.

Abstract: Biodegradable aliphatic/aromatic copolyester comprising: A) an acid component comprising repeating units of: 1) 53 to 54 mol % of an aromatic carboxylic acid; 2) 47 to 36 mol % of an aliphatic acid at least 50% of which is azelaic acid; B) a diol component selected from the group consisting of C3, C4 and C6 diols said AAPE being disintegrated according to the Standard ISO 20200 in 90 days.

Abstract: The invention relates to surface modifying macromolecules (SMMs) having high degradation temperatures and their use in the manufacture of articles made from base polymers which require high temperature processing. The surface modifier is admixed with the base polymer to impart alcohol and water repellency properties.

Abstract: Biodegradable aliphatic/aromatic copolyester comprising 50 to 60 mol % of an aromatic dicarboxylic acid and 40 to 50 mol % of an aliphatic acid, at least 90% of which is a long-chain dicarboxylic acid (LCDA) of natural origin selected from azelaic acid, sebacic acid, brassylic acid or mixtures thereof; and a diol component.

Abstract: The invention concerns a polymer material consisting of macromolecular chains bound by hydrogen bonds, wherein: the macromolecular chains consist of a polymer skeleton whereon is fixed by at least one covalent bond a modifying agent, the modifying agent comprising, assembled in a common molecule, one or more associative groups capable of being bound by hydrogen bonds and one or more reactive groups capable of forming covalent bonds with the polymer skeleton, at least one of the associative groups of the modifying agent is an imidazolidone heterocycle, the macromolecular chains bear on average, 1 to 10 imidazolidone groups per chain. The average number of imidazolidone groups to be introduced into the macromolecular chains depends both on the average mass of said chains and the final properties desired for the material.

Abstract: The present invention relates to an impact strength modifier for thermoplastic polyester resin and a thermoplastic polyester resin composition containing the same, more precisely an impact strength modifier for thermoplastic polyester resin prepared by graft-polymerization of a) 20-80 weight % of multilayered rubber latex in which the ratio of particle diameter (Pb/Pa) of an inner layer (Pa) to outer layer is 1.05-1.5, and glass transition temperature of the inner layer or the outer layer is up to ?30° C.; and b) 20-80 weight % of vinyl monomer. According to the present invention, a thermoplastic polyester resin composition having excellent transparency and improved impact strength can be provided by containing an impact strength modifier for thermoplastic polyester resin having multilayered structure in which content of rubber latex, glass transition temperature, particle diameter and refraction index are regulated.

Abstract: Methods for forming rosin-derived cationic compounds are provided. The method can include attaching a cationic group to a conjugated diene on a hydrophenathrene-based ring of a resin acid (e.g., levopimaric acid, abietic acid, dehydroabietic acid, or a mixture thereof) to form a rosin-derived cationic compound. Attaching the cationic group to the conjugated diene on the hydrophenathrene-based ring of the resin acid can be achieved via a Diels-Alder reaction of a dienophile with the hydrophenathrene-based ring of the resin acid. Rosin-derived cationic compounds are also provided. The rosin-derived cationic compound can include a cationic group attached to a conjugated diene on a hydrophenathrene-based ring of a resin acid, wherein the rosin-derived cationic compound further comprises a carboxylic acid group.

Abstract: Methods of producing polyphosphazene microspheres comprising admixing aqueous solutions of a water-soluble polyphosphazene and an organic amine, or salt thereof, are disclosed.

Abstract: A dimethyl terephthalate residual composition comprising a. dimethyl terepthalate derived from a terephthalic-containing polyester homopolymer, terephthalic-containing polyester copolymer, or a combination thereof; and b. from more than 0 to less than 4.2 wt. % of a residual component selected from dimethyl isophthalate, cyclohexane dimethanol, diethylene glycol, triethylene glycol, and combinations thereof.

Abstract: Photoactivatable prepolymers and methods of use thereof are disclosed for microencapsulation of a substantially water-insoluble material within a nonporous shell. As provided herein, the microencapsulated material is released with no more than a slow release rate. Upon exposure of the nonporous shell to light, the nonporous shell is converted into a porous shell having an increased release rate for the microencapsulated material.

Abstract: Disclosed are a polyester fiber having excellent antibacterial performance, deodorizing performance, and stain resistance together with sufficient durability; a method for producing the same; a cloth; a textile product; and a polyester formed article. The polyester fiber, cloth, or polyester formed article has a pH of less than 7.0 achieved by subjecting a polyester fiber, a cloth, or a polyester formed article containing a polyester copolymerized with an ester-forming metal sulfonate compound and/or an ester-forming phosphonium sulfonate compound to an acid treatment, or alternatively by applying a processing liquid having a pH of less than 7.0 to a polyester fiber, a cloth, or a polyester formed article.

Abstract: The present invention is directed to a method for producing a dispersion comprising: (a) forming a first reaction product by reacting: (a1) at least one monomer comprising an ethylenically unsaturated double bond; (a2) at least one carboxylic acid group-containing monomer; and (a3) at least one glycidyl ester compound; wherein the molar ratio of (a2) to (a3) is substantially 1:1; (b) forming a second reaction product in the presence of the first reaction product by reacting: (b1) at least one monomer comprising an ethylenically unsaturated double bond; and (b2) at least one carboxylic acid group-containing monomer; and (c) reacting an amine compound with the second reaction product; and wherein steps (a), (b), and (c) are conducted in a substantially solvent free environment.

Abstract: The invention relates to a process for the preparation of a copolymer by free radical mass polymerization of a maleic acid monoester derivative with vinyl ester in the presence of an acid having a pKa of less than 1.8. The copolymer is suitable as a dispersant for hydraulic binders.

Abstract: The present invention provides a compound represented by the Formula I: Wherein substituents R16, R17 and R17? are each independently selected from an electron withdrawing group having a Hammett ?p value of from 0.05 to 0.85, provided that one of R16 and R17 is hydrogen.

Abstract: A molecularly-imprinted polymeric material that selectively binds with an explosive compound. The molecularly-imprinted polymeric material comprises a cross-linked, water-soluble polymer having basic functional groups and a binding site capable of selectively binding an explosive compound. The basic functional groups have a pKa that is sufficiently high to react with the explosive compound to result in a visually detectable color change. For example, the basic functional groups may have a pKa in the range of 6.0-9.0. The molecularly-imprinted polymeric material may be used in a variety of applications, such as a projectile for detecting explosives. Also described is a method for making a molecularly-imprinted polymeric material.

Abstract: A composition of matter comprising a thermoplastic resin composition derived from (i) a polyester derived from a cycloaliphatic diol, and an aromatic diacid; (ii) a polycarbonate derived from at least from 20 mole percent to 100 mole percent of an aromatic diol derived from structure II wherein R3 and R4 are independently selected from the group consisting of C1-C30 aliphatic, C2-C30 cycloaliphatic and C2-C30 aromatic groups, X is CH2 and m is an integer from 3 to 7, n is an integer from 1 to 4, p is an integer from 1 to 4, and from 0 mole percent to 80 mole percent of a second aromatic dihydroxy compound; and wherein the resin composition is transparent is disclosed. Also disclosed is a process to prepare this composition and articles therefrom.

Abstract: The present invention relates to a fiber comprising a heat curable polyamide resin composition containing both a) a phenolic hydroxy group-containing polyamide and b) an epoxy resin having two or more epoxy groups in one molecule, a nanofiber comprising said resin composition obtained by electrospinning method, a nonwoven fabric obtained by applying heat treatment to a laminate of said nanofiber, a method for producing said nanofiber by electrospinning method and a heat curable polyamide resin composition for fiber. A nonwoven fabric can be obtained only by subjecting a deposit of the nanofiber obtained by electrospinning method to heat treatment, nanofibers in the obtained nonwoven fabric are bonded to each other by heat-curing, and the nonwoven fabric has such characteristics that its mechanical strength, heat resistance and chemical resistance are excellent and that it has a high strength.

Abstract: The present invention relates to a branched polyethylene terephthalate-co-isophthalate for use in the manufacture of foamed articles. The branched polyethylene terephthalate-co-isophthalate can be characterized by a composition comprising i) a polyethylene terephthalate-co-isophthalate comprising from about 5 to about 15 weight % of an isophthalic acid, and ii) a branching agent comonomer, wherein the branching agent comonomer is a polyhydric alcohol having functionality of 3 or more and the polyhydric alcohol is present in an amount of from 0.005 to about 0.01 equivalents per mole of total diacids. Other embodiments of the present invention include foamed articles produced from these compositions and processes to produce these compositions and the foamed articles.

Abstract: A method of developing degradable linear poly(ethylene glycol) PEG (DPEG) with multiple functioning capacities, which can be used as drug carriers for cancer cell delivery. A DPEG may be effective in targeting cancerous tumors through an enhanced permeation and retention effect (EPR). The DPEG will then degrade in the acidic extracellular fluid of solid tumors leading to fast cellular internalizations, finally degrading in the lysosome for efficient renal clearance. These may be used in conjunction with drugs and/or targeting groups. Furthermore, DPEGs are thermoresponsive, on an as needed basis, making them useful for in vivo application.

Abstract: A polyamide modified by a compound including a sulfonate group, as well as a method for preparing the polyamide and to articles obtained from said modified polyamide are described. A modified polyamide obtained from a mono-functional aromatic sulfonate compound is also described.