Patent classifications
C08F267/06
THERMOPLASTIC ELASTOMERS VIA ATOM TRANSFER RADICAL POLYMERIZATION OF PLANT OIL
The present invention relates to a block copolymer comprising at least one PA block and at least one PB block. The PA block represents a polymer block comprising one or more units of monomer A, and the PB block represents a polymer block comprising one or more units of monomer B. Monomer A is a vinyl, acrylic, diolefin, nitrile, dinitrile, or acrylonitrile monomer. Monomer B is a radically polymerizable plant oil monomer containing one or more triglycerides. The present invention also relates to a method of preparing a thermoplastic block copolymer by radical polymerizing a radically polymerizable monomer with a radically polymerizable plant oil monomer containing one or more triglycerides, in the presence of an initiator and a transition-metal catalyst system to form the thermoplastic block copolymer. The polymerized plant oil-based block copolymers are useful in a variety of applications, such as asphalt modifiers, rubber compositions, adhesives, tires, in the automobile industry, footwear, packaging, etc.
THERMOPLASTIC ELASTOMERS VIA ATOM TRANSFER RADICAL POLYMERIZATION OF PLANT OIL
The present invention relates to a block copolymer comprising at least one PA block and at least one PB block. The PA block represents a polymer block comprising one or more units of monomer A, and the PB block represents a polymer block comprising one or more units of monomer B. Monomer A is a vinyl, acrylic, diolefin, nitrile, dinitrile, or acrylonitrile monomer. Monomer B is a radically polymerizable plant oil monomer containing one or more triglycerides. The present invention also relates to a method of preparing a thermoplastic block copolymer by radical polymerizing a radically polymerizable monomer with a radically polymerizable plant oil monomer containing one or more triglycerides, in the presence of an initiator and a transition-metal catalyst system to form the thermoplastic block copolymer. The polymerized plant oil-based block copolymers are useful in a variety of applications, such as asphalt modifiers, rubber compositions, adhesives, tires, in the automobile industry, footwear, packaging, etc.
Molecularly imprinted polymer nanoparticles compatible with biological samples and preparation method thereof
This invention provides molecularly imprinted polymer nanoparticles compatible with biological samples, and in particular pure biological samples and a preparation method thereof. Said molecularly imprinted polymer nanoparticles have a crosslinking degree exceeding 50%, a particle diameter of 10 to 500 nm, hydrophilic polymer brushes on its surfaces and can be prepared by introducing appropriate hydrophilic macromolecular chain transfer agents into reversible addition-fragmentation chain transfer (RAFT) precipitation polymerization systems through the one-pot synthesis. The preparation method is simple, features a broad range of application and yields a pure product. The obtained hydrophilic molecularly imprinted polymer nanoparticles have prospects for a wide range of application in biological sample analysis, medical clinical immune analysis, food and environmental monitoring, biomimetic sensors, etc.
Molecularly imprinted polymer nanoparticles compatible with biological samples and preparation method thereof
This invention provides molecularly imprinted polymer nanoparticles compatible with biological samples, and in particular pure biological samples and a preparation method thereof. Said molecularly imprinted polymer nanoparticles have a crosslinking degree exceeding 50%, a particle diameter of 10 to 500 nm, hydrophilic polymer brushes on its surfaces and can be prepared by introducing appropriate hydrophilic macromolecular chain transfer agents into reversible addition-fragmentation chain transfer (RAFT) precipitation polymerization systems through the one-pot synthesis. The preparation method is simple, features a broad range of application and yields a pure product. The obtained hydrophilic molecularly imprinted polymer nanoparticles have prospects for a wide range of application in biological sample analysis, medical clinical immune analysis, food and environmental monitoring, biomimetic sensors, etc.
Compositions and methods for making biodegradable structures
A composition including PPF or a PPF copolymer that can be used to fabricate biodegradable structures. The composition can be used in 3-D patterning (e.g., 3-D printing and sterolighography) methods. For example, 3-D patternable compositions include PPF or a PPF copolymer, a photoinitiator or photoinitiators, and a resolution control inhibitor or inhibitors. The compositions can be used to make biodegradable structures (such as cardivascular scaffolds). The biodegradable structures can be surface functionalized. The biodegradable structures can be used in methods of blood delivery in an individual.
Compositions and methods for making biodegradable structures
A composition including PPF or a PPF copolymer that can be used to fabricate biodegradable structures. The composition can be used in 3-D patterning (e.g., 3-D printing and sterolighography) methods. For example, 3-D patternable compositions include PPF or a PPF copolymer, a photoinitiator or photoinitiators, and a resolution control inhibitor or inhibitors. The compositions can be used to make biodegradable structures (such as cardivascular scaffolds). The biodegradable structures can be surface functionalized. The biodegradable structures can be used in methods of blood delivery in an individual.
COMPOSITION FOR LINING
The present invention aims to provide a lining composition which overcomes the problems such as environmental problems (e.g. marine pollution) and VOC problem and which has a good cure rate. We have found that this can be achieved by a composition containing a vinyl ester resin as a prepolymer component and an aliphatic or alicyclic polyfunctional allyl ester compound as a crosslinking agent.
COMPOSITION FOR LINING
The present invention aims to provide a lining composition which overcomes the problems such as environmental problems (e.g. marine pollution) and VOC problem and which has a good cure rate. We have found that this can be achieved by a composition containing a vinyl ester resin as a prepolymer component and an aliphatic or alicyclic polyfunctional allyl ester compound as a crosslinking agent.
STABLE RHEOLOGY MODIFIER COMPOSITIONS
A dried rheology modifier composition comprises a swellable emulsion polymer and a water soluble support polymer. In one embodiment the swellable emulsion polymer is polymerized in the presence of the water soluble support polymer. In one embodiment the swellable emulsion polymer is blended with the water soluble support polymer. The drying can be accomplished by spray drying, resulting in a non-tacky powder having good shelf life. The dried rheology modifiers can be subjected to a further heat treatment which can result in a rheology modifier that imparts a short flow characteristic to product formulations. The swellable emulsion polymer can be alkali swellable or acid swellable. The water soluble support polymer can be a polysaccharide or a derivative thereof, or a polyvinyl acetate or derivative thereof.
STABLE RHEOLOGY MODIFIER COMPOSITIONS
A dried rheology modifier composition comprises a swellable emulsion polymer and a water soluble support polymer. In one embodiment the swellable emulsion polymer is polymerized in the presence of the water soluble support polymer. In one embodiment the swellable emulsion polymer is blended with the water soluble support polymer. The drying can be accomplished by spray drying, resulting in a non-tacky powder having good shelf life. The dried rheology modifiers can be subjected to a further heat treatment which can result in a rheology modifier that imparts a short flow characteristic to product formulations. The swellable emulsion polymer can be alkali swellable or acid swellable. The water soluble support polymer can be a polysaccharide or a derivative thereof, or a polyvinyl acetate or derivative thereof.