| 학회 |
한국고분자학회 |
| 학술대회 |
2015년 가을 (10/06 ~ 10/08, 대구컨벤션센터(EXCO)) |
| 권호 |
40권 2호 |
| 발표분야 |
분자전자 부문위원회 II |
| 제목 |
Tuning Mechanical and Optoelectrical Properties of Poly(3-hexylthiophene) through Systematic Regioregularity Control |
| 초록 |
While the regioregularity (RR) of conjugated polymers is known to have a strong influence on their inherent properties, systematic study of the RR effect has been limited due to the lack of a synthetic methodology. Herein, we successfully produced a series of poly(3-hexylthiophene)s (P3HTs) having a wide range of RR values from 64 to 98%. Incorporation of controlled amounts of head-to-head (H-H) coupled dimer in modified Grignard metathesis polymerization allows a facile tuning of the RR of the P3HTs with comparable molecular weight and low polydispersity. Then, we investigated the effect of RR on structural, electrical and mechanical properties of P3HTs in which a higher content of H-H regio-defects, namely lower RR, systematically lowered the degree of crystallinity. Our findings suggest that the mechanical and electrical properties of conjugated polymers can be systematically tuned by controlling the RR values to meet the purposes of various organic electronic applications. |
| 저자 |
김범준1, 김택수1, Kin Liao2, 정운룡3, 오준학3, 송인호3, 김형준1, 유호정3, 이원호1, 김재한1, 김진성1
|
| 소속 |
1한국과학기술원, 2칼리파대, 3포항공과대 |
| 키워드 |
전도성 고분자; P3HT; Regioregularity; 기계적 물성
|
| E-Mail |
|
