서지주요정보
나일론 6-폴리우레탄-나일론 6 블록 공중합체의 구조와 물성에 관한 연구 = A study on the structure and bulk properties of nylon 6-polyurethane-nylon 6 block copolymers
서명 / 저자 나일론 6-폴리우레탄-나일론 6 블록 공중합체의 구조와 물성에 관한 연구 = A study on the structure and bulk properties of nylon 6-polyurethane-nylon 6 block copolymers / 백덕만.
저자명 백덕만 ; Back, Duck-Man
발행사항 [서울 : 한국과학기술원, 1984].
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소장정보

등록번호

4102464

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8411

SMS전송

도서상태

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초록정보

ABA block copolymers, where A and B represent nylon 6 and polyurethane respectively, were prepared by anionic polymerization of ε-caprolactam in bulk. Isocyanate-terminated polyurethane prepolymers which were prepared from poly(tetramethylene glycol) (PTMG) and excess of hexamethylene diisocyanate (HDI) were reacted with ε-caprolactam to give caprolactam-terminated polyurethane prepolymers. Those prepolymers had N-acyllactam end groups showing the best initiator efficiencies and are called 'macroactivator' or 'macroinitiator'. Caprolactam magnesium bromide was used as a catalyst. The reactants were mixed at 100℃ and transferred into a preheated mold. The reaction was performed at 145℃ for about 6 hrs. The molar ratios of MDI to PTMG (m.w. = 986) were 2:1, 3:2, 4:3, 5:4. The polyurethane compositions in block copolymer were varied from 10% to 40%. Tg, Tm behavior, % crystallinity of nylon 6 segment and dynamic mechanical properties were observed through DSC and DMA. Shore D Hardness, water absorption and other mechanical properties such as tensile strength and impact strength were also observed.

서지기타정보

서지기타정보
청구기호 {MCE 8411
형태사항 [iii], 64 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Duck-Man Back
지도교수의 한글표기 : 김성철
지도교수의 영문표기 : Sung-Chul Kim
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 59-62
주제 Matter --Properties.
공중합. --과학기술용어시소러스
물리적 성질. --과학기술용어시소러스
Block copolymers.
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