Abstract
Abstract The purpose of these studies was to combine polydimethylsiloxane (PDMS) and polyisobutylene (PIB) sequences into novel triblock, PDMS-b-PIB-b-PDMS, and multiblock, (-PDMS-b-PIB-b-PDMS-)n, copolymers. The key toward syntheses was the definition of conditions for the initiation of living anionic polymerization of hexamethyl-cyclotrisiloxane (D3) at the CH2OLi termini of well-defined tele-chelic PIB sequences. Subsequent deactivation of living D3 polymerization charges with Me3 SiCl yielded the target triblock whereas stoichiometric amounts of Me2 SiCl2 gave the multiblock copolymer.
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Schedule a callMore From: Journal of Macromolecular Science: Part A - Chemistry
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