Polymer Science Faculty Research
Title
In-Situ Infrared Study of the Synthesis of Polyaniline Under Acid and Neutral pH
Document Type
Article
Publication Date
Fall 9-2014
Abstract
In-situ infrared study of polyaniline (PANI) synthesis showed that the reaction initiated at pH = 1.5 produced a granule PANI microstructure via para-linked dimers of 4-aminodiphenylamine, exhibiting γ(C–H) at 802 cm−1; the reaction initiated at pH = 5.0 and 7.0 produce fiberous, and planar microstructures via ortho-linked dimers of 1,2-aminodiphenylamine and phenazine, exhibiting γ(C–H) at 738 and ν(C=N) at 1446 cm−1. The doped PANI that was produced at pH less than 5.0 showed a feature-less IR background absorption above 1600 cm−1. This absorption could correspond to π-electron delocalization as an indicative of polyaniline conductivity.
Publication Title
Topics in Catalysis
Volume
57
Issue
10-13
Recommended Citation
Lohrasbi, Mehdi; Hedayat, Nader; and Chuang, Steven SC, "In-Situ Infrared Study of the Synthesis of Polyaniline Under Acid and Neutral pH" (2014). Polymer Science Faculty Research. 799.
https://ideaexchange.uakron.edu/polymerscience_ideas/799