Nematic-isotropic phase behaviors of polydisperse polymer/liquid-crystal systems: Chain-length-dependent interaction parameteropen access
- Authors
- Choi, Jung Jin; Bae, Young Chan; Kim, Jae Jun
- Issue Date
- Apr-2006
- Publisher
- WILEY
- Keywords
- lattice model; Maier-Saupe theory; modified double-lattice model; molar mass distribution; nematic-isotropic transition; phase behaviors; polydisperse polymers; polymer chain length
- Citation
- JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, v.44, no.7, pp.1031 - 1039
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
- Volume
- 44
- Number
- 7
- Start Page
- 1031
- End Page
- 1039
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/181626
- DOI
- 10.1002/polb.20745
- ISSN
- 0887-6266
- Abstract
- Phase behaviors of polydisperse polystyrene (PS)/nematic liquid-crystal systems [P-ethoxy-benzyhdene-p-n-butylaniline (EBBA)] are investigated with a thermo-optical analysis technique. We also develop a thermodynamic framework to describe the phase behaviors of polydisperse PS/EBBA systems. The proposed model is based on a modified double-lattice model to describe isotropic mixing and Maier-Saupe theory for anisotropic ordering. To correlate the polymer chain length and energy parameters in a nematic-isotropic biphasic region and to apply the primary interaction parameter in an isotropic-isotropic phase-transition behaviors of polydisperse PS/EBBA systems. The proposed model shows remarkable agreement with experimental data for the model systems in comparison with an existing model.
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Collections - 서울 공과대학 > 서울 건축공학부 > 1. Journal Articles
- 서울 공과대학 > 서울 화학공학과 > 1. Journal Articles
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