Journal
POLYMER
Volume 69, Issue -, Pages 349-356Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2015.01.023
Keywords
RAFT polymerization; DA reaction; Self-healing
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Funding
- UGC, New Delhi
- DMSDRE, DRDO Kanpur
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Tailor-made copolymers of furfuryl methacrylate (FMA) and butyl methacrylate (BMA) (PFMA-co-PBMA) were successfully synthesized by reversible addition fragmentation chain-transfer (RAFT) polymerization technique. The thermoreversible network was successfully achieved by DielseAlder (DA) and retro-DA reaction between the furfuryl groups of PFMA part and a bifunctional maleimide cross-linker, bismaleimide. This process was studied by NMR spectroscopy, FT-IR spectroscopy, differential scanning calorimetry (DSC) and nano-indentation analysis. DSC analysis was used to determine of the endothermic retro-DA reaction in copolymer-DA adduct. In this investigation self-healing property of the above cross-linked material was demonstrated by monitoring the repair of a scratch in the copolymer film upon heating and cooling. This was analyzed by scanning electron microscopy (SEM). (C) 2015 Elsevier Ltd. All rights reserved.
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