| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
Synthesis and self-assembly of discrete poly(ethylene glycol)-poly(lactic acid) block copolymers by iterative exponential growth and convergent modular approach |
| 초록 |
Discrete oligomers and polymers are synthetic macromolecules having perfectly defined sizes. The development of the methods for discrete macromolecules by synthesis and chromatographic separation are rapidly being undertaken, so that high molecular weight polymers and block copolymers could be prepared without losing their structural definition. Here we demonstrate high molecular weight amphiphilic block copolymers composed of discrete poly(ethylene glycol)s and poly(lactic acid)s by combining the convergent and modular synthetic approach. The iterative exponential growth of building blocks having orthogonal reactivity was utilized to synthesize discrete polymers having desired molecular weights. These structural modules were combined to form block copolymers setting a variety of topologies. We describe the self-assembly of these perfectly defined block copolymers in melt and solution in comparison with the behaviors exhibited by conventional block copolymers having size distribution. |
| 저자 |
이정민, 김경택
|
| 소속 |
서울대 |
| 키워드 |
discrete; PLA; iterative exponential growth
|
| E-Mail |
|
