Diffusion of hexane vapour in a doped poly(3-tetradecyl thiophene) film

✍ Scribed by Hsu, Wen-Ping; Ho, Ko-Shan

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 128 KB
• Volume: 47
• Category: Article
• ISSN: 0959-8103
• DOI: 10.1002/(sici)1097-0126(199812)47:4<479::aid-pi89>3.0.co;2-c

✦ Synopsis

A poly(3-tetradecyl thiophene) (PTDT) Ðlm was synthesized and doped with iodine. Hexane vapour was used as a di †usional probe to study the doped polymer at temperatures from 30É3 to 45É5¡C. Based on the results from sorption and di †usion measurements, morphological changes related to the sidechain crystals or ordered domains of doped PTDT appeared to occur between 30É3 and 40É2¡C. Doping caused decreases in the di †usivity and solubility of doped PTDT in comparison to non-doped PTDT. However, the estimated sorption of hexane by the side-chain of doped PTDT was larger than that of nondoped PTDT, probably due to an enlargement in the spacing created by doping.