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제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Self-assembly of complex doubly grafted bottlebrush polymer from branched multiblock macromonomers

2018년 8월 20일 16시 16분 30초
POLY.P-6 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 18일 (목요일) 11:00~12:30
Polymer Chemistry
저자 및
Jiyun Nam, Myungeun Seo*, Jeung Gon Kim1,*
Graduate School of Nano Science Technology, Korea Advanced Institute of Science and Technology, Korea
1Department of Chemistry, Chonbuk National University, Korea
The advancement of polymerization techniques extends complexity of polymer architecture from block copolymers followed by star polymers and graft polymers. As a class of graft copolymers, bottlebrush polymers are graft polymers containing grafted chains with every repeating unit. They exhibit high density of functional groups as well as extended conformation due to repulsion of the grafted chains. Janus-type bottlebrush polymer emerged as one of the bottlebrush polymer types in visualization for cylindrical Janus nanoobjects. Doubly grafted side chains attached along the backbone enables to achieve cylindrical Janus morphology type via intramolecular segregation of incompatible side chain. Here we explored synthesis of doubly grafted bottlebrush polymers (DGBP) via graft-through ring-opening metathesis polymerization (ROMP) of branched multiblock macromonomers (BMMMs) towards complex Janus-type bottlebrush polymers with two different surfaces. By utilizing single monomer unit insertion (SUMI) in the reversible addition-fragmentation chain transfer (RAFT) process, we will discuss synthesis of the BMMMs containing two, three blocks with different compositions. Characterization of complex Janus DGBP and their self-assembly behaviors will be also presented.