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제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Photoinduced Metal-Free Atom Transfer Radical Polymerization with Diverse N-aryl Phenoxazine

등록일
2018년 8월 20일 17시 05분 43초
접수번호
0472
발표코드
POLY.P-7 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 18일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Polymer Chemistry
저자 및
공동저자
Gyeong Su Park, Kyung-sun Son*
Department of Chemistry, Chungnam National University, Korea
Atom transfer radical polymerization (ATRP) has been in the spotlight by far as a groundbreaking synthetic method. Using this process, the distribution of functional groups, molecular weight of polymers, polydispersity and others can be precisely regulated, whereby the polymers with a various structure also can be designed and manufactured. However, contamination of the polymer by the metal catalyst remains a challenge, which limit the use of the traditional ATRP method in electronic or biomedical applications. The drawback has spawned investigations into the development of organic catalysts for photo-controlled, metal-free polymerizations. Herein, we investigated the metal-free ATRP process mediated by light and catalyzed by organic photoredox catalysts. The organic photocatalyst was designed by diversifying N-aryl phenoxazine. We evaluated our newly discovered organic photoredox catalysts for metal-free ATRP using a series of monomers, initiators and solvents. Also, amphiphilic block copolymer was prepared using this method to form micelles, providing a basis for the biomedical applications.

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