Journal
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume 49, Issue 13, Pages 2771-2782Publisher
WILEY
DOI: 10.1002/pola.24710
Keywords
click chemistry; diblock copolymers; functionalization of polymers; isocyanates; reversible addition fragmentation chain transfer
Categories
Funding
- Australian Research Council [LP100200339]
- Ignite Energy Resources
- Gritton Scholarship
- SEC
- Australian Research Council [LP100200339] Funding Source: Australian Research Council
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We describe a facile, one-pot, two-step polymerization towards synthesizing block co-polymers bearing reactive isocyanate functional groups. Reversible addition fragmentation chain transfer (RAFT) polymerization is used to mediate the co-polymerization of isocyanate-bearing monomers dimethyl meta-isopropenyl benzyl isocyanate (TMI) and 2-isocyanatoethyl methacrylate (ICEMA) with styrene and methyl methacrylate (MMA), respectively. ICEMA was incorporated into the polymer at a faster rate than TMI and its unhindered isocyanate group was found to be more reactive than the hindered isocyanate group of TMI. Both the TMI/styrene and the MMA/ICEMA systems maintain the reactivity of the isocyanate functionality, which was exploited by attaching representative hydroxyl-bearing small and large molecules as well as solid substrates to the block co-polymers. Thus, we demonstrate the versatility of the block co-polymer system as a basis for forming branched polymers or as grafts for a solid substrate. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 2771-2782, 2011
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