Phase behavior of poly(3-alkylthiophene)/polystyrene blends |
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| Authors: | Youngmin Lee Chu-Han Chiu Ching-I Huang |
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| Affiliation: | a National Creative Research Initiative Center for Block Copolymer Self-Assembly, Department of Chemical Engineering and Polymer Research Institute, Pohang University of Science and Technology, San 31, Hyo-ja dong, Pohang, Kyungbuk 790-784, Republic of Korea
b Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan |
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| Abstract: | Phase diagrams of blends consisting of poly(3-n-alkylthiopene) having four different n-alkyl side chain lengths (n = 4, 6, 8, 12) and polystyrene (PS) were obtained by turbidity measurement. All of the P3AT/PS blends employed in this study exhibited the upper critical solution temperature (UCST) type phase behavior. From n = 4 poly(3-butylthipene)] to n = 6 poly(3-hexylthipene)], the miscibility between P3AT/PS blends decreased, but with further increase in the value of n, the miscibility increased. Thus, the miscibility of the P3HT/PS blend becomes the least among four blend pairs. This interesting phase behavior depending on n was successfully illustrated via the combination of Monte Carlo simulation and molecular dynamics. |
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| Keywords: | Phase behavior P3AT/PS blend Monte Carlo simulation |
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