| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 봄 (04/07 ~ 04/08, 대전컨벤션센터) |
| 권호 |
36권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Stereocomplex Formation of ABA Triblock Copolymers by combining between Polybutadiene and Enantiomeric Poly(lactide)s |
| 초록 |
Two enantiomeric ABA triblock copolymers composed of poly(L-lactide)-polybutadiene(PBD)-poly(L-lactide)(LBDL) and poly(D-lactide)-polybutadiene(PBD)-poly(D-lactide)(DBDD) were synthesized by ring-opening polymerization of D-lactide and L-lactide in the presence of hydroxy telechelic polybutadiene (HTPBD), respectively. The reactions were carried out at different ratio of D-lactide and L-lactide with fixed amount of PBD in solid-state polymerization. Chemical structures of the triblock copolymers and their stereocomplex were confirmed by FT-IR and 1H-NMR, and the molecular weights were estimated by gel permeation chromatography (GPC). Stereocomplex was obtained by mixing an equal amount of each enantiomeric polymer in the molten state. Their crystalline structure and crystalline melting behaviors were analyzed by X-ray diffraction (XRD) measurements and differential scanning calorimetry (DSC) by comparing with each triblock copolymer. |
| 저자 |
박은하, 진인주
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| 소속 |
인하대 |
| 키워드 |
Poly(lactide)s; Polybutadiene; Triblock Copolymers; Stereocomplex
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| E-Mail |
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