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  • 09월 05일 13시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Synthesis of Conjugated Polymers by the Ring-Forming Polymerization of Nonconjugated Diynes: Cyclopolymerization of 1,1-Dipropargyl-1-silacycloalkanes by Transition Metal Catalysts

등록일
2007년 8월 1일 13시 53분 00초
접수번호
0009
발표코드
34P182포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅰ>
발표형식
포스터
발표분야
유기화학
저자 및
공동저자
이인숙, 김성무, 곽영우, 제갈영순1
경북대학교 화학과,
1경일대학교 교양학부(화학),
Cyclopolymerization of 1,1-dipropargyl-1-silacyclobutane and 1,1-dipropargyl-1-silacyclopentane was examined by various transition metal catalysts. WCl6 was found to be very effective for this cyclopolymerization to give high yields of polymer. The polymer structure was characterized to have the conjugated polymer backbone with silacycloalkane moieties. The resulting poly(1,1-dipropargyl-1-silacyclobutane) was insoluble in any organic solvents, whereas the poly(1,1-dipropargyl-1-silacyclopentane) was partially soluble. The conjugated spirocyclic polymers were mostly yellow or light-brown powders, depending on the catalyst systems used. The thermal and oxidative stabilities of the polymer were also studied and discussed.

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