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 년도별 목차보기 |
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| 발행년도/권호 |
1998 년 / 권호: V.10,no.5,Oct |
| 논문제목1(원어) |
폴리에테르를 이용한 락톤의 개환중합 |
| 논문제목2(타언어) |
Ring Opening Polymerization of Lactone Using Polyethers |
| 저자(원어) |
이찬우 (한국 화학연구소 염료염색가공센타) 오세화 (한국 화학연구소 염료염색가공센) 배기서 (충남대학교 공과대학 섬유공학과) |
| 저자(타언어) |
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| 소속(원어) |
이찬우 (한국 화학연구소 염료염색가공센타) 오세화 (한국 화학연구소 염료염색가공센) 배기서 (충남대학교 |
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| 시작/끝
페이지 |
32 ~ 38 총페이지 : 7 |
| 언어(원어) |
Korean |
| 초록 |
Glycolides were polymerized by PPG or Pluronic(PN) to give A-B-A block copolyesters consisting of polyglycolide(A) and polypropylene glycol(B) or polyglycolide(A) and PN (B). Lactones were easily copolymerized with polyethers by ester interchange reaction even in the absence of catalyst. It is because PPG and PN are telechelic polyethers having hydroxy groups on their both ends. When the feed ratio of PPG(M=4,000) and PN(M=11,500) were over 5 and 10 wt% .elative to glycolide, respectively, the polymerization of glycolide took place from the terminus hydroxy groups of PPG or PN to produce the desired A-B-A block copolymers in high yields. The molecular weights of the copolymers, which estimated from the monomer conversions and the feed ratios of PPG and PN, could be controlled by changing the kind of terminus hydroxy of polyether and the feed molar ratio of PPG and PN. PN. |
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간행물정보
한국염색가공학회지
