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제125회 대한화학회 학술발표회 및 총회 RuPhos Pd-catalyzed Suzuki-Miyaura catalyst-transfer polycondensation with a coil-type macroinitiator: A novel synthetic route for the preparation of conjugated rod-coil block copolymers

등록일
2020년 2월 6일 14시 17분 32초
접수번호
0832
발표코드
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발표분야
Polymer Chemistry
저자 및
공동저자
Hae-Nam Choi, In-Hwan Lee1,*
Department of Energy System Research, Ajou University, Korea
1Department of Chemistry, Ajou University, Korea
Herein, we report a novel synthetic route for conjugated rod-coil block copolymers from the coil-type macroinitiator. Initially, polystyrene was prepared by atom transfer radical polymerization, and its end-group was converted to aryl iodide to be used as the macroinitiator for RuPhos Pd-catalyzed Suzuki-Miyaura catalyst-transfer polycondensation (SCTP). After that, with this PS macroinitiator, SCTP of MIDA-functionalized 3-hexylthiophene monomer afforded polystyrene-block-poly(3-hexylthiophene) with control over molecular weight and low dispersity. Furthermore, we carried out the same polymerizations using other-types of coil-type macroinitiators including poly(methyl acrylate) and poly(methyl methacrylate), and this also resulted in corresponding conjugated rod-coil block copolymers with low dispersity. Finally, with the developed method, we successfully synthesized a unique ABC-type triblock copolymer that was hard to be obtained by previous polymerization protocols.

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