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학술발표회초록보기

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제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 High-transparent and good impact strength polycarbonate-polysiloxane copolymers process

등록일
2018년 7월 27일 10시 11분 11초
접수번호
0020
발표코드
POLY.P-1 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 18일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Polymer Chemistry
저자 및
공동저자
Jieun Kim, Seong Hyen Heo*, Youngdo Kwon*
Chemical Research Laboratory, Samyang Corporation, Korea
This application relates to polycarbonate-polysiloxane copolymers having high transparency and good impact strength. Polycarbonate-polysiloxane copolycarbonates of bisphenol A (BPA) and siloxane comonomers are known to have excellent impact resistance properties in comparison with BPA homopolycarbonates, especially at lower temperatures. Such materials have found commercial use in articles such as helmets, automobile parts, and many other applications requiring impact resistance and transparency. This polycarbonate-polysiloxane block copolymer is composed of at least one polycarbonate block, at least one polysiloxane block, and a bit of surface modifying agent that includes at least one polysiloxane segment. As the number of polysiloxane block increases, the impact resistance improves, but the transparency suffers, and vice versa. In order to improve transparency while obtaining good impact strength, a shorter unit of polysiloxane comonomer was used. The copolymer also exhibits improved hemocompatibility and therefore can be useful for a variety of articles that may contact blood.

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