Journal
POLYMER
Volume 54, Issue 16, Pages 4161-4170Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2013.05.066
Keywords
Cross-linking; De-cross-linking; Triphenylimidazole
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Funding
- Japan Society for the Promotion of Science [23510112]
- Grants-in-Aid for Scientific Research [23510112] Funding Source: KAKEN
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The radical polymerization of 4-(4,5-diphenyl-1H-imidazol-yl)-phenyl acrylate (DPIPA) was carried out in N,N-dimethylformamide at 60 degrees C for 24 h by using 2,2'-azobis(isobutyronitrile) (5 mol%) as an initiator to give a poly(DPIPA) (1) as a homopolymer. Poly(DPIPA-co-MMA) (2) was obtained by the radical copolymerization of DPIPA with methyl methacrylate (MMA) in a good yield. Moreover, copolymeriztion parameters of DPIPA were evaluated by the copolymerization of MMA. The cross-linking reaction of the obtained 2 proceeded with K-3[Fe(CN)(6)] and KOH. The resulting cross-linked poly(DPIPA-co-MMA) (3) was de-cross-linked by pressurization or visible light irradiation. Consequently, the thiol-capped de-cross-linked poly(DPIPA-co-MMA) (4) was obtained in a good yield. (C) 2013 Elsevier Ltd. All rights reserved.
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