| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 기능성 고분자 |
| 제목 | The Effect of Catalyst and Reaction Conditions on the Preparation of L-Lactide |
| 초록 | Poly(lactic acid) is one of well known biodegradable polymers that has the most numerous applications in industries as plastics, fibers, and others. The PLA synthetic process via direct condensation reaction has difficulties in attaining high molecular weight due to the occurrence of depolymerization reaction. The most industrially acceptable PLA synthetic process is known via lactide formation reaction. In this process, the lactic acid monomer is first polymerized to oligomeric PLA, depolymerized to lactide, and then re-polymerized to attain high molecular weight by ring opening mechanism. The production of L-lactide was carried out at various reaction conditions (temperature and pressure) with different catalyst systems. The compositon of resulting lactide was investigated by nuclear magnetic resonance(NMR). |
| 저자 | 유동근, 이두성, 김덕준 |
| 소속 | 성균관대 |
| 키워드 | L-lactide; Racemization; catalysis; catalysis |
