| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Synthesis of self-healable polyimide with excellent weatherability based on charge transfer complex interaction |
| 초록 |
Series of self-healable polyimides are synthesized based on charge transfer complex (CTC) interaction. It is noted that unlike conventional polyimides, all the polyimides prepared in this study have low glass transition temperatures below 86 ℃ and are soluble in most non-polar and polar solvents. 3,3',4,4'-Biphenyl tetracarboxylic acid dianhydride (BPDA), pyromellitic dianhydride (PMDA), or 4,4'-oxydiphthalic dianhydride (ODPA) is introduced to control the degree of CTC interaction and UV-resistance of self-healable polyimides. The self-healing efficiencies increase with higher molar ratio of BPDA, PMDA, or ODPA owing to the stronger CTC interaction. However, the BPDA-based self-healable polyimide only shows that ΔYI (change in yellow index before and after UV exposure) decreases considerably as the molar ratio of BPDA increases while other self-healable polyimides show the opposite trend. |
| 저자 |
문경민1, 홍평화1, 김진실1, 김기승1, 강정순2, 최기원2, 이성구1, 고민재2, 홍성우1
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| 소속 |
1한국생산기술(연), 2한양대 |
| 키워드 |
Self-healing; polyimide; Weatherability; CTC interaction
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| E-Mail |
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