| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Sequentially Controlled Regioregularity of Block Poly(3-hexylthiophene) Copolymers through Living Chain-Growth |
| 초록 |
In this paper, the living chain-growth of regioregularity(RR)-controlled P3HT(co-P3HT) via catalyst-transfer polycondensation(CTP) was validated by measuring time-dependent RR and correlations between the molecular weight and monomer conversion. Furthermore, regioregular-block-regiorandom P3HT copolymer(block-P3HT) consisting of blocks with different RRs was synthesized by sequentially added monomer. The RR of each block could be easily adjusted by different feed ratios of monomer. Then, we investigated the effect of the distribution of regiodefects within the polymer chain on crystalline behaviors by comparing block-P3HT and co-P3HT. Although the P3HT polymers had analogous total RR, the block-P3HT showed stronger tendency to crystallize and self-assemble due to the absence of regiodefects in the highly regioregular block, inducing strong intermolecular interactions. Our findings could provide a synthetic route for optimizing the crystalline behavior of poly(3-alkylthiophene)s. |
| 저자 |
박현정, 김진성, 최지은, 한정훈, 김영권, 신재만, 김범준
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| 소속 |
KAIST |
| 키워드 |
regioregularity (RR); Poly(3-hexylthiophene) (P3HT); Block copolymer
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| E-Mail |
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