Self-healing polymeric gel via RAFT polymerization and Diels-Alder click chemistry

被引：61

作者：

Pramanik, Nabendu B. ^{[1
]}

Nando, Golok B. ^{[1
]}

Singha, Nikhil K. ^{[1
]}

机构：

[1] Indian Inst Technol, Ctr Rubber Technol, Kharagpur 721302, W Bengal, India

来源：

POLYMER | 2015年 / 69卷

关键词：

RAFT polymerization; DA reaction; Self-healing; LIVING RADICAL POLYMERIZATION; BEARING FURAN MOIETIES; FURFURYL METHACRYLATE; NETWORKS; STYRENE;

D O I：

10.1016/j.polymer.2015.01.023

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

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.

引用

页码：349 / 356

页数：8

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