C08F22/06

Amphiphilic Graft Copolymers
20170233517 · 2017-08-17 ·

A novel amphiphilic graft copolymer is described. A process to make amphiphilic graft copolymers via grafting either poly(ethylene oxide) or polylactide side chains onto an EVA platform using oxo-anion ring-opening polymerization chemistry is also described. Polyethylene or polypropylene based graft copolymers are prepared starting from poly(ethylene-co-vinyl acetate) or maleic anhydride grafted isotactic polypropylene respectively. The amphiphilic character will result from the incorporation of hydrophilic poly(ethylene oxide) (PEO) side-chains. Various applications of the novel amphiphilic graft copolymer are also described including, but not limited to, thermoplastic elastomer, films, fibers, fabrics, gels, breathable packaging materials, additive for biodegradable system, surfactant, antistatic additives, polymer compatibilizers, phase transfer catalysts, solid polymer electrolytes, biocompatible polymers, or incorporation into the materials listed above.

Amphiphilic graft copolymers

A novel amphiphilic graft copolymer is described. A process to make amphiphilic graft copolymers via grafting either poly(ethylene oxide) or polylactide side chains onto an EVA platform using oxo-anion ring-opening polymerization chemistry is also described. Polyethylene or polypropylene based graft copolymers are prepared starting from poly(ethylene-co-vinyl acetate) or maleic anhydride grafted isotactic polypropylene respectively. The amphiphilic character will result from the incorporation of hydrophilic poly(ethylene oxide) (PEO) side-chains. Various applications of the novel amphiphilic graft copolymer are also described including, but not limited to, thermoplastic elastomer, films, fibers, fabrics, gels, breathable packaging materials, additive for biodegradable system, surfactant, antistatic additives, polymer compatibilizers, phase transfer catalysts, solid polymer electrolytes, biocompatible polymers, or incorporation into the materials listed above.

Amphiphilic graft copolymers

A novel amphiphilic graft copolymer is described. A process to make amphiphilic graft copolymers via grafting either poly(ethylene oxide) or polylactide side chains onto an EVA platform using oxo-anion ring-opening polymerization chemistry is also described. Polyethylene or polypropylene based graft copolymers are prepared starting from poly(ethylene-co-vinyl acetate) or maleic anhydride grafted isotactic polypropylene respectively. The amphiphilic character will result from the incorporation of hydrophilic poly(ethylene oxide) (PEO) side-chains. Various applications of the novel amphiphilic graft copolymer are also described including, but not limited to, thermoplastic elastomer, films, fibers, fabrics, gels, breathable packaging materials, additive for biodegradable system, surfactant, antistatic additives, polymer compatibilizers, phase transfer catalysts, solid polymer electrolytes, biocompatible polymers, or incorporation into the materials listed above.

Polymeric materials with responsive adhesion and/or mechanical properties

Methods of adjusting the mechanical properties of a polymeric material may include forming a polymer network having a plurality of permanent cross-links and coupled to a plurality of reversible cross-links, wherein the polymer network has a shear storage modulus of greater than about 410.sup.4 Pa; and heating the polymer network using a heat source to dissociate the reversible cross-links, wherein heating the polymer network reduces the shear storage modulus to less than about 410.sup.4 Pa. In some embodiments, a polymeric material may include a polymer network comprising a plurality of permanent cross-links and coupled to a plurality of reversible cross-links that are dissociable with the application of a stimulus and associable with the removal of the stimulus, wherein the shear storage modulus of the polymer network is less than about 410.sup.4 Pa in the presence of the stimulus and greater than about 410.sup.4 Pa in the absence of the stimulus.

Polymeric materials with responsive adhesion and/or mechanical properties

Methods of adjusting the mechanical properties of a polymeric material may include forming a polymer network having a plurality of permanent cross-links and coupled to a plurality of reversible cross-links, wherein the polymer network has a shear storage modulus of greater than about 410.sup.4 Pa; and heating the polymer network using a heat source to dissociate the reversible cross-links, wherein heating the polymer network reduces the shear storage modulus to less than about 410.sup.4 Pa. In some embodiments, a polymeric material may include a polymer network comprising a plurality of permanent cross-links and coupled to a plurality of reversible cross-links that are dissociable with the application of a stimulus and associable with the removal of the stimulus, wherein the shear storage modulus of the polymer network is less than about 410.sup.4 Pa in the presence of the stimulus and greater than about 410.sup.4 Pa in the absence of the stimulus.

Green, safe and environmentally-friendly process and production equipment for industrialized continuous large-scale production of formaldehyde-free water-based adhesive

A green, safe and environmentally-friendly process and production equipment for industrialized continuous large-scale production of a formaldehyde-free water-based adhesive; the process includes: performing a polymerization reaction on a monomer having a carbon-carbon unsaturated double bond and an acid anhydride group and at least one other monomer containing a carbon-carbon unsaturated double bond that serve as raw materials in the presence of a solvent and an initiator; and performing solid-liquid separation on the polymerization reaction solution under the action of a high-temperature inert carrier gas, vaporizing, condensing, and recovering the solvent for indiscriminate use in polymerization reaction, and performing a gas-solid reaction on the solid material serving as a polymer intermediate and a mixed gas of ammonia gas and air to obtain a solid formaldehyde-free water-based adhesive product.

Green, safe and environmentally-friendly process and production equipment for industrialized continuous large-scale production of formaldehyde-free water-based adhesive

A green, safe and environmentally-friendly process and production equipment for industrialized continuous large-scale production of a formaldehyde-free water-based adhesive; the process includes: performing a polymerization reaction on a monomer having a carbon-carbon unsaturated double bond and an acid anhydride group and at least one other monomer containing a carbon-carbon unsaturated double bond that serve as raw materials in the presence of a solvent and an initiator; and performing solid-liquid separation on the polymerization reaction solution under the action of a high-temperature inert carrier gas, vaporizing, condensing, and recovering the solvent for indiscriminate use in polymerization reaction, and performing a gas-solid reaction on the solid material serving as a polymer intermediate and a mixed gas of ammonia gas and air to obtain a solid formaldehyde-free water-based adhesive product.

Alternating copolymers of selected unsymmetrically substituted stilbenes and maleic anhydride or N-substituted maleimides

In one aspect, the disclosure relates to the production of alternating polymers of maleic anhydride or an N-substituted maleimide with a stilbene.

Metal-crosslinkable polymer composition, metal-crosslinked polymeric material, metal component, and wiring harness

A metal-crosslinkable polymer composition and a metal crosslinked polymeric material having excellent curing rate and storage stability, and a metal member and a wiring harness to which the metal-crosslinkable polymer composition and the metal crosslinked polymeric material are applied. The metal-crosslinkable polymer composition includes an ingredient A which releases a metal ion when heated, and an ingredient B includes an organic polymer having a substituent group capable of forming an ionic bond with the metal ion released from the ingredient A. The metal-crosslinked polymeric material includes a crosslinked product of the metal-crosslinkable polymer composition. The metal member has a metal base member and a coating member covering a surface of the metal base member, where the coating member includes the metal-crosslinked polymeric material. The wiring harness includes the metal-crosslinked polymeric material.

Metal-crosslinkable polymer composition, metal-crosslinked polymeric material, metal component, and wiring harness

A metal-crosslinkable polymer composition and a metal crosslinked polymeric material having excellent curing rate and storage stability, and a metal member and a wiring harness to which the metal-crosslinkable polymer composition and the metal crosslinked polymeric material are applied. The metal-crosslinkable polymer composition includes an ingredient A which releases a metal ion when heated, and an ingredient B includes an organic polymer having a substituent group capable of forming an ionic bond with the metal ion released from the ingredient A. The metal-crosslinked polymeric material includes a crosslinked product of the metal-crosslinkable polymer composition. The metal member has a metal base member and a coating member covering a surface of the metal base member, where the coating member includes the metal-crosslinked polymeric material. The wiring harness includes the metal-crosslinked polymeric material.