| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Synthesis and characterization of imide-based polyurethane with enhanced self-healability |
| 초록 |
A functional polyurethane with imide moiety (PUI) is synthesized and its self-healing properties are examined compared with conventional polyurethane (PU). To prepare PUI, a polyol and an imide derivative containing either mono-hydroxyl group or di-hydroxyl groups are blended and the blend is reacted with crosslinker containing multiple isocyanate groups. Interestingly, by incorporating only a small amount of imide moiety to polyurethane, the self-healable PUI exhibits higher self-healing efficiency and faster self-healing kinetics than PU only. It is also noted that PUI based on imide derivative with di-hydroxyl groups exhibits excellent self-healing performances compared with that with mono-hydroxyl group. A model for the mechanism for self-healing is derived by analyzing FT-IR spectra, which concludes that the outstanding self-healability of PUI is attributed to the unique intermolecular networks resulting from the strong interactions between urethane groups and imide groups. |
| 저자 |
박희정1, 김진실2, 문경민2, 홍평화2, 이동현1, 홍성우2
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| 소속 |
1단국대, 2한국생산기술(연) |
| 키워드 |
imide; polyurethane; self-healing
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| E-Mail |
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