Patent ID: 8765895
Filing Date: 2014-07-01
Classification: A61F,A61L,C08F,C08J,G02B

Abstract:
1. A method of preparing a thermoset copolymer comprising: cationic polymerizing a mixture including i) at least one branched alkene monomer, ii) at least one olefin monomer having a pendant benzocyclobutene (BCB) group, and iii) at least one initiator suitable for cationic polymerization of the mixture to form the thermoset copolymer; wherein the thermoset copolymer formed by cationic polymerization of the mixture is a block copolymer having a random distribution of a plurality of constitutional units that include constitutional units corresponding to the at least one branched alkene monomer of i) and constitutional units corresponding to the at least one olefin monomer having a pendant benzocyclobutene (BCB) group of ii); and wherein the branched alkene monomer of i) is an isoolefin selected from the group consisting of isobutylene, 2-methyl-1-butene, 2-methyl-1-pentene, 2-methyl-1-hexene, and combinations thereof.