| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 고분자 합성 |
| 제목 | Preparation and Stereo Sequences of High-Molecular-Weight Poly(L-Lactic acid) Through Direct Condensation Polymerization |
| 초록 | The synthesis of high molecular weight (weight-average molecular weight ~ 130,000 g/mol) lactic acid polymers was investigated through the direct condensation polymerization of L-lactic acid in bulk state. The polymerizations were carried out using titanium (Ⅳ) butoxide as catalyst at different polymerization time. The molecular weights were characterized with gel permeation chromatography (GPC). The stereo sequences were analyzed by 13C NMR spectroscopy on the basis of triad effects. Figure 1. 13C NMR spectra of the carbonyl groups of PLLA130000 |
| 저자 | 김훈식, 박병현, 윤진산 |
| 소속 | 인하대 |
| 키워드 | PLA; condensation; stereosequences |
