| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
고분자 합성 |
| 제목 |
Synthesis of Poly(arylene ether) with Controlled Molecular Weight and Narrow Polydispersities via Chain-growth Polycondensation. |
| 초록 |
Classical polycondensation is a step-growth process, in which molecular weight of polymers is generally difficult to control and molecular weight distribution approaches 2 theoretically at high conversion aside from exception. To obtain the controlled molecular weights and narrow polydispersities, polycondensation should proceed by chain-growth mechanism rather than step growth. Nature already uses a chain-growth polycondensation process to synthesize monodisperse biopolymers such as DNA and polypeptides. We have synthesized well defined condensation polymer, poly(arylene ether) containing an azobenzene group in main chains, through chain-growth polycondensation. Under certain condition, AB' type monomers don't react each other but react with B type initiator which has more reactive sites. And then the monomers undergo polymerization in a chain-growth manner to give a well defined condensation polymer with narrow polydispersity. |
| 저자 |
허재원1, 김윤준2, 김상율3
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| 소속 |
1KAIST 화학과 분자과학사업단(BK21), 2Department of Materials Science and Engineering, 3Univ. of Wisconsin-Madison |
| 키워드 |
chain-growth polycondensation |
| E-Mail |
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