| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
콜로이드 및 분자조립 부문위원회 Ⅰ |
| 제목 |
1-dimensional crystallization of polycarbonate by rapid thermal quenching with entropy diluent |
| 초록 |
Recently, crystallization of stereo-irregular atactic-PMMA with entropy diluent was reported, providing unique 1-D structure and strong mechanical property. Hypo-crystalline poly (bisphenol-A carbonate) (hc-PC) was similarly prepared by rapid thermal quenching process using benzoic acid as entropy diluent. Also, PC crystals were prepared by precipitation and solvent casting methods for comparison. While precipitation and solvent casting methods follows conventional polymer crystallization resulted to spherulite PC crystal structure, hc-PC exhibits 1-D structure with ordered lateral packing between chains (d = 4.1 and 3.4Å) which is independent from chain conformation and the other two dimension was still amorphous. 1-D hc-PC provides different thermal property that originally shows clear melting transition at 225oC but can be shifted to 285oC by thermal annealing. |
| 저자 |
Van Thanh Vu1, 황명순2, 강영종2
|
| 소속 |
1Hanyang Univ., 2한양대 |
| 키워드 |
polycarbonate; polymer crystallization; hypo-crystal
|
| E-Mail |
|
