| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Study on Microstructure and Phase Transition of PLA-PEG-PLA Tri-block Copolymer Aqueous Solution by SAXS |
| 초록 |
PLA has been combined with a hydrophilic PEG segment to produce an amphiphilic copolymer structure. In recent years many efforts have been made in the synthesis of PLA-PEG di- and tri-block copolymers. PLA-PEG block copolymers will self-assemble spontaneously in water into a spherical micelle of a few hundred molecules which has a core of densely packed hydrophobic PLA block and a dense PEG brush shell which radiates from the core. And they show sol-gel transition at various concentrations and temperatures depending on the volume fraction of each block and overall molecular weight. In this work, PLA-PEG-PLA tri-block copolymers with various block lengths were synthesized. The aqueous solutions of the synthesized block copolymers with different concentrations were prepared and their sol-gel transitions with the detailed microstructures accompanying the transition were examined by the small angle X-ray scattering (SAXS). |
| 저자 |
태선규, 최광복, 전혜진, 송현훈
|
| 소속 |
한남대 |
| 키워드 |
PLA-PEG-PLA triblock copolymer; sol-gel transition; SAXS
|
| E-Mail |
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