서지주요정보
2-메틸-2-(2-프로페닐)-1,3-디티안-1,1,3,3-테트라옥시드의 합성과 개환중합 = Synthesis and ring-opening polymerization of 2-methyl-2-(2-propenyl)-1,3-dithiane-1,1,3,3-tetraoxide
서명 / 저자 2-메틸-2-(2-프로페닐)-1,3-디티안-1,1,3,3-테트라옥시드의 합성과 개환중합 = Synthesis and ring-opening polymerization of 2-methyl-2-(2-propenyl)-1,3-dithiane-1,1,3,3-tetraoxide / 김동식.
저자명 김동식 ; Kim, Dong-Sik
발행사항 [대전 : 한국과학기술원, 1993].
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소장정보

등록번호

8003500

소장위치/청구기호

학술문화관(문화관) 보존서고

MAME 93001

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초록정보

In the study of ring-opening polymerization of α-vinyl cyclic 1,3-disulfone, 2-methyl-2-(2-propenyl)-1, 3-dithiane-1, 1, 3, 3-tetraoxide (MPDTA-2 ) was prepared and its polymerization behavior was investigated. Polymerization of MPDTA-2 was carried out with radical and photo initiators under various condition. MPDTA-2 polymerized in high conversion with AIBN and BPO. However, with DTBP and BME as photo initiator the polymerization failed to give any polymeric product. The chemical structures of these polymers were determined by NMR and IR spectra. From the analysis of these spectra, it was confirmed that polymerization proceeded in mixed mode of 1, 2-type (vinyl mode) and 1, 8-type (rign-opening mode). The extent of ring opening was about 75 % as estimated from integration values of the $^1H$-NMR spectra and was not strongly affected by kinds of initiators and concentration of monomers. It is thought that the participation of 1, 8-type may be from the stability of initially formed tertiary radical. This polymer decomposed around 300℃ as determined by TGA and exhibited a glass transition at 90℃.

서지기타정보

서지기타정보
청구기호 {MAME 93001
형태사항 iii, 47 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Dong-Sik Kim
지도교수의 한글표기 : 조의환
지도교수의 영문표기 : I-Whan Cho
학위논문 학위논문(석사) - 한국과학기술원 : 신소재공학과,
서지주기 참고문헌 : p. 43-46
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