| 학회 | 한국고분자학회 |
| 학술대회 | 2002년 봄 (04/12 ~ 04/13, 서울대학교) |
| 권호 | 27권 1호, p.83 |
| 발표분야 | 고분자 합성 |
| 제목 | Hydrolytic Degradation of Poly(D,L-lactide)(PDLLA)/D,L-lactide/PDLLA-Poly(ethylene glycol)(PEG)-PDLLA Blend System |
| 초록 | The hydrolysis of PLAs in aqueous media at around pH 7 is believed to proceed via the self- or autocatalytic effect of their terminal carboxyl groups. The effects of structural and molecular characteristics on the autocatalytic hydrolysis of PLAs have been intensively investigated in the phosphate-buffered solution. In this study, ring open polymerization of D,L-lactide was carried out using Tin(Ⅱ)-2-ethyl hexanoate(stannous octoate) catalyst. Poly(ethylene glycol)(PEG)-poly(D,L-lactide) triblock copolymers of varying molecular weights were synthesized. The PDLLA/D,L-lactide/ PDLLA-PEG-PDLLA blend films were prepared to be amorphous state and their autocatalytic hydrolysis was investigated in the phosphate-buffered solution (pH 7.4) at 37℃. Themal and mechanical properties of the blends were also examined. |
| 저자 | 진인주, 신혜영 |
| 소속 | 인하대 |
| 키워드 | |
