Synthesis of telechelic vinyl/allyl functional siloxane copolymers with structural control

Frederikke Bahrt Madsen, Irakli Javakhishvili, Rasmus Egekjær Jensen, Anders Egede Daugaard, Søren Hvilsted, Anne Ladegaard Skov

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Abstract

Multifunctional siloxane copolymers with terminal vinyl or allyl functional groups are synthesised through the borane-catalysed polycondensation of hydrosilanes and alkoxysilanes. Copolymers of varying mole- cular weights ( M ̄ w =13200 – 70 300 g mol − 1 ), spatially well-distributed functional groups and high end- group fi delity are obtained in a facile and robust synthetic scheme involving polycondensation, end-group transformation and di ff erent functionalisation reactions such as Cu( I )-mediated azide – alkyne cycloaddition. Pendant alkyl chloride, alkyl azide, bromoisobutyryl, 4-nitrobenzene and 1-ethyl-imidazolium chloride fragments with programmable spatial distributions are incorporated in the copolymer backbones. NMR and FTIR spectroscopy as well as size exclusion chromatography corroborate the efficacy and versatility of this modular approach.
Original languageEnglish
JournalPolymer Chemistry
Volume5
Issue number24
Pages (from-to)7054-7061
ISSN1759-9954
DOIs
Publication statusPublished - 2014

Bibliographical note

This article is published Open Access as part of the RSC's Gold for Gold initiative, licensed under a Creative Commons Attribution 3.0 Unported Licence.

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