摘要:
A functionalized polymer includes a directly bonded moiety, which can be located at a terminus of the polymer, defined by the formula —CR1R2NH-Q-M where M is (N═CR1R2) or N-(QN═CR1R2)2 each Q independently is a substituted or unsubstituted, cyclic or acyclic C1-C40 alkyl, aryl, or alkaryl radical, and each R1 and R2 independently is a hydrogen atom or a substituted or unsubstituted alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, allyl, aralkyl, alkaryl, or alkynyl group. The polymer can be provided by introducing a polyimine compound into a system that includes carbanionic (living) polymer. Such polymers can be used in the production of compositions that include particulate fillers.
摘要:
A functionalized polymer includes a directly bonded moiety, which can be located at a terminus of the polymer, defined by the formula —NH—NR1R2 where R1 and R2 independently are substituted or unsubstituted alkyl, alkenyl, cycloalkyl, cycloalkenyl, aryl, allyl, aralkyl, alkaryl, or alkynyl groups, or together form a substituted or unsubstituted alkylene, alkenylene, cycloalkylene, cycloalkenylene, or arylene group. The functionalized polymer can be provided by reacting a living polymer with a hydrazone. Such polymers can be used in the production of compositions that include particulate fillers.
摘要:
A composition that includes functionalized polymers and one or more types of particulate filler exhibits both an increased gum Mooney viscosity and a decreased compound Mooney viscosity relative to a comparable composition that includes only one such functionalized polymer. The functionalized polymers include first and second types of functionalities which exhibit a non-covalent interaction that has a bond energy of from about 0.1 to about 20 kJ/mol.
摘要:
A composition that includes functionalized polymers and one or more types of particulate filler exhibits both an increased gum Mooney viscosity and a decreased compound Mooney viscosity relative to a comparable composition that includes only one such functionalized polymer. The functionalized polymers include first and second types of functionalities which exhibit a non-covalent interaction that has a bond energy of from about 0.1 to about 20 kJ/mol.
摘要:
Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing α-methylstyrene functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.
摘要:
Compositions and methods are included for preparing a hairy polymeric nanoparticle including first and second shell block polymer arms are at least partially phase-separated and surround a polymeric core. One type of polymeric arm can have a greater polarity than the other type(s) of polymeric arms. A rubber composition including the hairy nanoparticles is also provided.
摘要:
Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing α-methylstyrene functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.
摘要:
Vulcanizates with desirable properties can be obtained from compounds incorporating polymers that include hydroxyl group-containing diphenylethylene-type functionalities. The functionalities can be incorporated by using any or all of appropriate initiators, monomers and optional terminating compounds. Such polymers exhibit excellent interactivity with both conventional and non-conventional fillers.
摘要:
A macromolecule includes a functional group including imine functionality bonded to a polymer chain. Where desired, the functional group also can contain additional (e.g., amine and/or silane) functionality. The material can be provided by reacting a polymer including carbonyl functionality with a compound including a primary amino group. The functional group can interact with particulate filler such as, e.g., carbon black and silica.
摘要:
A macromolecule including a polymer and a polyhedral radical chemically bonded to a terminus of the polymer provides numerous processing and performance advantages. Further functionalization of this macromolecule also is described as being advantageous in certain circumstances. Methods of providing, functionalizing, and utilizing the macro-molecule also are provided.