| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Efficient Molecular Design for Highly Conductive and Flexible Semiconductors : Poly(3-hexylthiophene) Regioblock Copolymers |
| 초록 |
The coexistence of flexibility and electrical performance is important for wearable electronic devices. Herein, we demonstrate poly(3-hexylthiophene) regioblock copolymers (block-P3HTs) that show both great electrical and mechanical performance. A series of block-P3HTs were synthesized by the combination of crystalline regioregular block (rre-block) with similar molecular weight (Mn) and flexible regiorandom block (rra-block) with varied Mn, using grignard metathesis. They produced high mobility in all average regioregularity (RRavg), based on high crystallinity and edge-on stacking induced by the rre-block. Meanwhile, rra-block facilitate the crystallization of entire chains resulted in the highest mobility at 87% RRavg rather than 97 % RRavg. Furthermore, the film of block-P3HTs were stretched over 30% strain, while that of pure P3HT is decomposed at 0.3% strain. block-P3HTs is great molecular system in that they enable effective charge transportation under large stretching. |
| 저자 |
박현정, 마부수, 김진성, 김영권, 김택수, 김범준
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| 소속 |
KAIST |
| 키워드 |
Block copolymer; Regioregularity; Charge carrier mobility; Flexibility
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| E-Mail |
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