| 학회 |
한국고분자학회 |
| 학술대회 |
2003년 가을 (10/10 ~ 10/11, 부경대학교) |
| 권호 |
28권 2호, p.314 |
| 발표분야 |
고분자 합성 |
| 제목 |
Ring-Opening Polymerization of L-Lactide in Supercritical Carbon dioxide |
| 초록 |
Recently, the synthesis of biodegradable polymers in superciritical CO2 (scCO2 ) has attracted more attention. Supercritical CO2 is an adequate reaction medium because of its low toxicity, low cost and nonflammability. In coordination-insertion polymerization of L-lactide promoted by Al, Zn and Sn compounds as catalyst in bulk, in solution and in scCO2 , the structure of the active species, the reactivity of the initiators including a hydroxyl group bearing reagents and their contribution to propagation and side reactions (e.g. intra- and intermolecular transesterifications) are known. However, nothing is known about the mechanism and kinetics of homogeneous ring-opening polymerization of L-lactide promoted by tin octoate/alcohol in scCO2 . This paper reports preliminary results about the ring-opening polymerization of L-lactide initiated by tin (II) octoate/1-dodecanol in scCO2. |
| 저자 |
백지원1, 김수현2, 김영하2, 이윤우2, 박수영1
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| 소속 |
1서울대, 2한국과학기술(연) |
| 키워드 |
polymerization; L-lactide; supercritical; carbon dioxide
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| E-Mail |
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