Nematic-isotropic phase behaviours of polydisperse polymer/liquid crystal systems: Applicability of continuous thermodynamics |
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| Institution: | 1. Department of Information Display Engineering, Hanyang University, Seoul 133-791, Republic of Korea;2. Department of Electronics and Computer Engineering, Hanyang University, Seoul 133-791, Republic of Korea;1. Department of Otolaryngology – Head and Neck Surgery, College of Medicine, Hanyang University, Seoul, Republic of Korea;2. Department of Internal Medicine, College of Medicine, Hanyang University, Seoul, Republic of Korea;1. Department of Civil and Environmental Engineering, Hanyang University, Seoul, South Korea;2. Central Scientific Instruments Organisation (CSIR-CSIO), Sector 30 C, Chandigarh, 160030, India;1. Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea;2. Department of Food and Nutrition, College of Health Science, Honam University, Gwangju 62399, South Korea;3. Department of Food and Nutrition, College of Human Ecology, Hanyang University, Seoul 04763, South Korea |
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| Abstract: | Phase behaviours of polydisperse polystyrene (PS)/nematic liquid crystals (LCs) P-ethoxy-benzylidene-p-n-butylaniline (EBBA) are investigated by thermo-optical analysis (TOA) technique. In this study, to describe nematic-isotropic transition of the polydisperse PS/EBBA systems, a continuous distribution function to obtain the composition of polydisperse polymers is considered precisely. We apply these molar mass distributions to the extended Flory–Huggins model. The proposed semi-empirical model gives a remarkable agreement with experimental data for the model systems. |
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