Partially Sulfonated Ethylene-Vinyl Alcohol Copolymer as New Substrate for 3,4-Ethylenedioxythiophene Vapor Phase Polymerization

作者：Martinelli Andrea^*; D'Ilario Lucio; Francolini Iolanda; Piozzi Antonella; Pizzi Elisa

来源：Journal of Polymer Science Part B: Polymer Physics , 2014, 52(18): 1203-1210.

DOI：10.1002/polb.23556

• conducting polymers
• ethylene vinyl alcohol copolymer
• films
• functionalization of polymers
• poly(3,4-ethylene-dioxyphenylene)
• supports
• transparency
• vapor phase polymerization

A new conducting composite polymer film is obtained by vapor phase polymerization of 3,4-ethylenedioxythiophene (EDOT) on a biocompatible polyanion derived from the partial sulfonation (32%) of statistical ethylene vinyl alcohol copolymer (EVAL32). EVALS32 and the oxidant (iron(III) p-toluenesulfonate, [PTS]) are contemporaneously spin coated from a methanol/water solution on glass slide. EVALS32-PTS-coated glass slides are exposed to EDOT vapors, and the polymerization is followed by Vis-NIR spectroscopy. We observed that PEDOT slowly grows into the bulk of EVALS32 matrix. Thanks to the sulfonic groups of the polyanion acting as doping agents, a highly conjugate p-doped EVALS32-PEDOT compos-ite film with a good conductivity (1.6 x 10(2) S cm(-1)), transparency, and stability in water is obtained. The EVALS32-PEDOT film seems an ideal candidate for the preparation of organic devices to be applied in electronics, biosensor, or actuation technology.

• 出版日期2014-9-15