122nd General Meeting of the KCS

Type Poster Presentation
Area Polymer Chemistry
Room No. Grand Ballroom
Time 10월 18일 (목요일) 11:00~12:30
Code POLY.P-36
Subject Internal structure and optical property of end-crosslinked poly(ethylene glycol) network
Authors Jungju Ryu*, Daewon Sohn1,*
Neutron Science Center, Korea Atomic Energy Research Institute, Korea
1Department of Chemistry, Hanyang University, Korea
Abstract This study reveals the internal structure of poly(ethylene glycol) (PEG) network with chain ends crosslinks. PEG networks with different molecular weight and volume fraction were observed by using small-anlge neutron scattering and X-ray scattering. The networks exhibited certain domains determined by molecular weight between crosslinks. The overall inhomogeneities of the gels were influenced by volume fraction. The occupation of local domains, consisting of entangled chains or lamellar stacks, were proved from the swollen and cast networks. The results demonstrate the optical properties caused by the localized polymer density in the network, and they provide the ideas to prepare contraollable network architecture.
E-mail jungjuryu@naver.com