| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 봄 (04/07 ~ 04/09, 대전컨벤션센터) |
| 권호 |
46권 1호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
End-on Orientation of Poly(3-alkylthiophene)s by Microphase Separation of AmphiPhilic Diblock Copolymer |
| 초록 |
To fabricate end-on orientation of poly(3-alkylthiophene) (P3AT) where the backbone chains are oriented perpendicularly, amphiphilic diblock copolymers consisting of P3ATs were synthesized. We synthesized poly(3-dodecylthiophene)-block-poly(3-(2-(2-(2-methoxyethoxy)ethoxy)ethoxy)methylthiophene) copolymer (P3DDT-b-P3TEGT) using the GRIM method. P3DDT-b-P3TEGT showed lamellar microdomains. The thin film morphology measured by AFM and GIWAXS showed parallel oriented lamellar microdomains. This is because of a large difference of surface tension between hydrophobic P3DDT and hydrophilic P3TEGT blocks. Thus, both P3DDT and P3TEGT backbone chains were oriented perpendicularly to the lamellar layer, and the end-on orientation of P3DDT chains was obtained. P3DDT-b-P3TEGT film showed much improved hole mobility compared with neat P3DDT film. This indicates that end-on orientation is very effective for designing high performance vertically operating devices. |
| 저자 |
김필곤, 김진곤
|
| 소속 |
포항공과대 |
| 키워드 |
Block Copolymer; End-on; Self-Assembly
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| E-Mail |
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