Madsen, Frederikke Bahrt1; Javakhishvili, Irakli1; Jensen, Rasmus Egekjær3; Daugaard, Anders Egede1; Hvilsted, Søren1; Skov, Anne Ladegaard4
1 Department of Chemical and Biochemical Engineering, Technical University of Denmark2 The Danish Polymer Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark3 Technical University of Denmark4 Centre for oil and gas – DTU, Center, Technical University of Denmark
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.
Polymer Chemistry, 2014, Vol 5, Issue 24, p. 7054-7061