Synthesis and characterizations of midblock-quaternized poly(styrene-<EM>b</EM>-2-bromoethyl acrylate-<EM>b</EM>-styrene) triblock copolymers for anion exchange membranes
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초록
내용
A high performance of anion exchange membranes (AEMs) is highly demanded in anion exchange membrane fuel cells (AEMFCs) and has been extensively studied. Therefore, in this study, poly(styrene-b-2-bromoethyl acrylate-b-styrene) was synthesized by reversible addition fragmentation chain transfer (RAFT) polymerization and sequentially the amination of poly(2-bromoethyl acrylate) segment with trimethylamine (TMA) was performed to prepare midblock-quaternized poly(styrene-b-2-bromoethyl acrylate-b-styrene) as an AEM. Various characterizations of midblock-quaternized triblock copolymer were carried out to confirm its AEM properties. The synthetic results and characterizations of the triblock copolymer containing quaternary ammonium (QA) will be discussed in detail.