Journal
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume 49, Issue 12, Pages 2677-2684Publisher
WILEY
DOI: 10.1002/pola.24699
Keywords
anionic polymerization; isocyanate-free; monomer activation; polyepichlorohydrin; polyethers; polyurethanes
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Poly(allyl glycidyl ether) and poly(allyl glycidyl ether-co-epichlorohydrin) were prepared by monomer-activated anionic polymerization. Quantitative and controlled polymerization of allyl glycidyl ether (AGE) giving high molar mass polyether was achieved in a few hours at room temperature in toluene using tetraoctylammonium salt as initiator in presence of an excess of triisobutylaluminum ([ i-Bu3Al]/[NOct(4)Br] = 2-4). Following the same polymerization route, the copolymerization of AGE and epichlorohydrin yields in a living-like manner gradient-type copolymers with controlled molar masses. Chemical modification of the pendant allyl group into cyclic carbonate was then investigated and the corresponding polymers were used as precursors for the isocyanate-free synthesis of polyurethane networks in presence of a diamine. Formation of crosslinked materials was followed and characterized by infrared and differential scanning calorimetry. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 2677-2684, 2011
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