| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Effect of Stereocomplex crystallite as a nucleating agent on the Crystallization behavior of Poly (L-lactic acid) in melt state |
| 초록 |
Non-isothermal and isothermal crystallization behaviors of Poly(L-lactic acid)(PLLA) blended with different contents of Poly(D-lactic acid)(PDLA) were studied by wide-angle X-ray diffraction, rheology, differential scanning calorimetry, and polarized optical microscopy. Poly(D-lactic acid)(PDLA) molecules added in Poly(L-lactic acid)(PLLA) formed stereocomplex crystallites in the Poly(L-lactic acid)(PLLA) matrix. Non-isothermal crystallization measurement showed that crystallization temperature (Tcc) showed peculiar Poly(D-lactic acid)(PDLA) concentration dependence. Isothermal crystalliza-tion measurement showed that crystal radius growth rate decreases with increase the isothermal crystallization temperature. Spherulite growth rate shows peculiar Poly(D-lactic acid)(PDLA) concentration dependence. Poly(L-lactic acid)(PLLA) crystallization behavior might be affected by network structure and homogeneous dispersibility of stereocomplex crystal. |
| 저자 |
이현섭 |
| 소속 |
호남석유화학(주) |
| 키워드 |
Poly(L-lactic acid); Stereocomplex; Nucleating agent
|
| E-Mail |
|
