| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Synthesis of zwitterionic polyurethane with enhanced self-healing properties |
| 초록 |
A new zwitterionic polyurethane (ZPU) is synthesized and its self-healing properties are characterized in this study. To synthesize ZPU, a polyol and a zwitterionic polyol are blended and the blended polyols are reacted with crosslinker containing isocyanate groups. In comparison with ZPU based on blend system, a polyurethane with randomly distributed zwitterions (rZPU) from one-pot synthesis and conventional polyurethane with no zwitterions (cPU) are prepared. A self-healing test under dry and wet condition reveals that ZPU shows better self-healing performances than rZPU and cPU while rZPU exhibit similar self-healing efficiency compared with cPU. Interestingly, even though rZPU also has zwitterions, only ZPU shows significant improvement of self-healability in the presence of water. All of these results demonstrate that the zwitterion-based self-healing material can maximize its self-healability by concentration of zwitterions into a local domain as opposed to random distribution. |
| 저자 |
강정순1, 최기원1, 홍평화2, 김진실2, 문경민2, 김기승2, 이성구2, 홍성우2, 고민재1
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| 소속 |
1한양대, 2한국생산기술(연) |
| 키워드 |
Self-healing; Zwitterionic Polyurethane
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| E-Mail |
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