| 학회 |
한국고분자학회 |
| 학술대회 |
2021년 가을 (10/20 ~ 10/22, 경주컨벤션센터) |
| 권호 |
46권 2호 |
| 발표분야 |
콜로이드 및 분자조립 부문위원회 Ⅰ,Ⅱ |
| 제목 |
Correlation lengths of tetra-poly(ethylene glycol) in semidilute solutions and gels |
| 초록 |
Star polymer gels can improve the performances of typical polymer gels due to their isotropic geometry. In this study, characteristics of tetra-poly(ethylene glycol) (4-PEG) were explored in semidilute solutions and gels, to understand that how the networks are established with fundamental geometries that start gelation. The star polymers were probed in semidilute solutions and gels using light scattering and small-angle X-ray scattering measurements. Double decay modes of light scattering results demonstrated the diffusion of macromers and subdiffusive behavior in the semidilute regime. These features were correlated to correlation lengths of X-ray scattering. Correlation lengths were also estimated in gel networks prepared by modification of functional groups with catechol moieties. The results revealed that the correlation lengths correspond to the mesh sizes in networks which consists of bis-complexes of catechol moieties that can produce tight links. |
| 저자 |
유정주, 손대원
|
| 소속 |
한양대 |
| 키워드 |
star polymer; correlation length; semidilute solution; hydrogel; catechol
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| E-Mail |
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