| 학회 |
한국고분자학회 |
| 학술대회 |
2007년 봄 (04/12 ~ 04/13, 제주 ICC) |
| 권호 |
32권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Effect of additive types on the crystal modifications of solution-cast film of P(VDF/HFP) (88/12) film using N,N-dimethylacetamide as a solvent |
| 초록 |
P(VDF/HFP)(88/12) copolymer does not exhibit Curie transition and its application temperature range is much higher than that of P(VDF/TrFE) and difficult to obtain β-crystal phase with very high VDF content through solution casting. P(VDF/HFP) in acetone and 2-butanone produced β-crystalline phase but surface topography is terribly bad since acetone and 2-butanone are poor solvents for P(VDF/HFP) with high VDF content. However, with N,N-dimethylacetamide as solvent, we were able to obtain least surface roughness and γ-crystal of small polarization is preferentially formed. For the application of P(VDF/HFP) film to the ferroelectric memory device, more β-crystal content is required and hence the addition of several types of onium salt and onium salt-modified clay were investigated. Acknowledgement: The authors of this paper would like to thank the Korea Science and Engineering Foundation (KOSEF) for sponsoring this research through the SRC/ERC Program of MOST/KOSEF (R11-2005-065). |
| 저자 |
윤선, 김갑진
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| 소속 |
경희대 |
| 키워드 |
P(VDF/HFP); β-crystalline phase
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| E-Mail |
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