| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Transition of Morphology Behaviors of Regioregularity Controlled P3HT-b-P2VP Block Copolymers in Solution |
| 초록 |
In selective solvents, poly(3-hexylthiophene) (P3HT)-based block copolymers (BCPs) assembles into crystallized nanowire (NW) structures in contrast to micelluar (MC) structures from conventional coil-coil BCP. Herein, we demonstrate a transition of NW to MC structures of P3HT-based BCPs as changing of their regioregularity (RR). We synthesized a series of P3HT-b-P2VP copolymers, of which RR was systemically regulated from 95 to 55% and investigated their solution behavior in binary solvent mixtures. NW structure was produced from the P3HT-b-P2VP with high RR of 95%. Between 80% and 65% of RR, intermediate morphologies between NWs and MCs were observed. When RR decreased, the widths and heights of such quasi-NWs were gradually increased in reverse proportion to reduction of crystallinity analyzed by GIWAXS and DSC measurement. Under 65% of RR, crystallization of the P3HT moiety is sufficiently suppressed so that only MC structures were formed. |
| 저자 |
김영권1, 김진성1, 김형준2, 박현정1, 한정훈1, 김범준1
|
| 소속 |
1KAIST, 2U.Mass.Amherst |
| 키워드 |
P3HT; solution assembly; block copolymer; regioregularity
|
| E-Mail |
|
