Abstract:
A block copolymer; a method of reducing the surface tension of a liquid comprising adding to said liquid less than 10 wt % of a surface active agent derived from the block copolymer; a method for modifying the surface chemistry of a polymeric substrate comprising adding less than 10 wt % of a surface active agent derived from the block copolymer; a polymerized foam composition made from a mixture containing one or more of monomers, oligomers, and polymers, the mixture comprising less than 10 wt % of a surface active agent derived from the block copolymer and an article comprising the polymerized foam. A block copolymer comprising at least one block having a quaternary ammonium ion.
Abstract:
Provided are compositions comprising a polymeric matrix; a plurality of fillers; and a block copolymer wherein at least one segment of the block copolymer interacts with the fillers. Also provided are composition comprising a plurality of fillers having surfaces and a block copolymer wherein at least one segment of the block copolymer is capable of interacting with the fillers upon application in a polymeric matrix. Compositions comprising a flame retardant compound and a block copolymer wherein at least one segment of the block copolymer is capable of interacting with the flame retardant compound upon application in a polymeric matrix are also provided.
Abstract:
Compositions comprising a plurality of carbon nanotubes, a host polymer, and A block copolymer comprising a first block and a second block, wherein no block is compatible with the host polymer. In one aspect, the block copolymer is amphophilic. In another aspect, the block copolymer may comprise a first block and a second block, wherein at least one of the first and second blocks comprises repeating units derived from a monomer having the general formula: (R)2C=C(R)(Rf) wherein Rf is selected from fluorine, a C1 to C10 fluorinated or perfluorinated alkyl group, and a C1 to C10 o fluorinated or perfluorinated alkoxy group; each R is independently selected from F, H, Cl, Rf, a C1 to C10 alkyl group, and R2A, wherein R2 is a C1 to C10 alkylene group and A is selected from CO2M and SO3M, wherein M is selected from H, an ammonium and organo onium group.
Abstract:
Block copolymers are suitable additives for polymeric composites containing microspheres. The block copolymers have at least one segment that is capable of interacting with the microspheres thereby enhancing the physical characteristics of the composition.
Abstract:
Optical adhesives that also diffuse visible light include a blend of an adhesive matrix which is an optical adhesive and a block copolymer. The adhesive may be a pressure sensitive adhesive and contains either acid or basic functionality. The block copolymer, which may be a diblock copolymer, contains a high Tg block and a functional block, the functionality of the functional block is complimentary to the functionality of the adhesive matrix to form an acid-base interaction. The adhesive may also contain a crosslinking agent.
Abstract:
Disclosed is a method for modifying a polymer by carrying out a thermally-induced reaction in a mixing apparatus having a high shear environment and devolatilization capabilities. Also disclosed are the resulting materials.
Abstract:
Compositions comprising a carbon containing nano-material, a curable matrix, and a block copolymer comprising a functional block and a non-functional block, wherein no block is compatible with the curable matrix. Also provided are cured compositions, multi-layer articles comprising the compositions, and multi-layer articles comprising the cured compositions. Further provided is a method for increasing the material dampening of a polymer composition comprising mixing a curable matrix, a carbon containing nano-material, and a block copolymer comprising a functional block and a non-functional block.
Abstract:
A deprotectable polymer, activating agent, and layered silicate are combined and the deprotectable polymer is at least partially deprotected to form a composite. The composite may be combined with a polymeric resin to form a nanocomposite.