| 학회 |
한국고분자학회 |
| 학술대회 |
2011년 가을 (10/06 ~ 10/07, 김대중 컨벤션센터) |
| 권호 |
36권 2호 |
| 발표분야 |
고분자합성-구조제어중합 |
| 제목 |
Synthesis and Characterization of Star-shaped Polystyrene-block-poly(methyl methacrylate) Copolymer |
| 초록 |
We synthesized star-shaped polystyrene-block-poly(methyl methacrylate) copolymer (PS-b-PMMA) by utilizing α-cyclodextrin (α-CD) as an junction point of the star shape. For this purpose, 18 hydroxyl groups on α-CD were replaced with bromine groups by the reaction with α-bromoisobutyryl bromide (BIBB). These brominated groups were used as the initiation site of atom transfer radical polymerization (ATRP) for PS and PMMA. The expected molecular structure is that 18 PS-b-PMMA chains are attached to one α-CD. We characterized that the number of block polymer-linked arms per one α-CD is higher than 16 measure by nuclear magnetic resonance(NMR) and Matrix-assisted laser desorption/ionization(MALDI). The morphologies of this block copolymer are also investigated. |
| 저자 |
장상신, 문홍철, 이영민, 김진곤
|
| 소속 |
POSTECH |
| 키워드 |
PS-b-PMMA; starlike block copolymer
|
| E-Mail |
|
