| 학회 | 한국화학공학회 |
| 학술대회 | 2017년 봄 (04/26 ~ 04/28, ICC 제주) |
| 권호 | 23권 1호, p.83 |
| 발표분야 | 고분자 |
| 제목 | Phase Behavior Comparison Star-shaped PS-b-PMMA depending on catalysts for ATRP |
| 초록 | Star-shaped polystyrene-block-poly(methyl methacrylate) copolymer (PS-b-PMMA), using different catalysts CuBr and CuCl, were synthesized by using α-cyclodextrin (α-CD) as a core of the star-shape. When CuBr was used for catalyst, PMMA was linked to only 75% of PS arm and, in the case of CuCl for calatlyst, PMMA was linked to 100% of PS arms perfectly. The reason is that, using CuCl for catalyst, reaction rate of propagation of PMMA to PS whose end is bromine is similar to that of PMMA to PMMA whose end is chloride. Because of this difference, phase diagram depending on shell part volume fraction was different. Those block copolymers were characterized by gel permeation chromatography and nuclear magnetic resonance. Morphology of Star-shaped block copolymer was characterized by TEM and small angle X-ray scattering. |
| 저자 | 서예성, 김진곤 |
| 소속 | 포항공과대 |
| 키워드 | 고분자합성 |
| 원문파일 | 초록 보기 |
