| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
A Novel Approach for 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, an acrylate-rich polyol and a styrene-rich polyol containing zwitterions are blended and the blended polyols are reacted with crosslinker containing multiple isocyanate groups. The resulting ZPU shows no phase separation and exhibits excellent optical properties like high total transmittance and low haze. A self-healing test performed in the presence of water reveals that ZPU shows more effective self-healing performances than conventional polyurethane with no zwitterions. This can be explained by the fact that the chain mobility of ZPU increases and the effective chain rearrangement occurs due to the interaction between water molecules and zwitterions, and the strong ionic interactions are reformed between ZPU chains in the healing process upon drying. |
| 저자 |
강정순1, 이서윤1, 최기원1, 홍평화2, 김진실2, 문경민2, 이성구2, 홍성우2, 고민재1
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| 소속 |
1한양대, 2한국생산기술(연) |
| 키워드 |
Self-healing; Zwitterion; Polyurethane
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| E-Mail |
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