| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
Regulated Fluidity of Vitrimers from Controlled Exchange Reaction |
| 초록 |
Vitrimers have attracted much attention in recent polymer science due to the properties of cross-linked polymers with malleable and reprocessable characters upon thermal heating. The exchange reactions in covalent adaptable networks affect to viscoelastic properties of vitrimers, also the topology freezing transition behavior. In this study, the fluidity of vitrimer was regulated from controlled exchange reaction at varying temperature. Two different catalysts with different activation energies were used to control of reaction rate. Regulated fluidities were characterized using rheometer and dynamic mechanical analysis. Correlated activation energy and topology freezing transition temperature (Tv) were evaluated from analyzed data. |
| 저자 |
박범수1, 류두열2, 김용석1, 박성민1
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| 소속 |
1한국화학(연), 2연세대 |
| 키워드 |
Vitrimer; Dynamic Covalent Network; Activation energy; Topology freezing transition; Stress Relaxation
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| E-Mail |
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