Phase behavior of poly(3-alkylthiophene)/polystyrene blends

✍ Scribed by Youngmin Lee; Jin Kon Kim; Chu-Han Chiu; Yi-Kang Lan; Ching-I. Huang

• Book ID: 104087994
• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 666 KB
• Volume: 50
• Category: Article
• ISSN: 0032-3861
• DOI: 10.1016/j.polymer.2009.08.012

✦ Synopsis

Phase diagrams of blends consisting of poly(3-n-alkylthiopene) having four different n-alkyl side chain lengths (n ¼ 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 ¼ 4 [poly(3-butylthipene)] to n ¼ 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.