Role of anions in the polymerization of 2,5-dimethoxyaniline in the presence of poly (styrene sulfonic acid)

L. I.Ming Huang, Guo Cheng Huang, Ten Chin Wen

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Poly(2,5-dimethoxyaniline) (PDMA)-Ag composites were successfully obtained through the oxidative polymerization of 2,5-dimethoxyaniline in poly(styrene sulfonic acid) with CH3SO3Ag and AgNO3 as oxidants. In situ ultraviolet-visible spectroscopy results showed that the growth rate of PDMA was strongly affected by CH3SO3 - and NO3-. The coupling reaction of PDMA and NO3- was proposed to explain the lower growth rate of PDMA with AgNO3 as the oxidant in comparison with CH3SO 3Ag. X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy were used to validate the proposed coupling reaction through the monitoring of the side products and oxidized state of PDMA. The results showed that there were more side products and lower oxidized states for the composite structure in the presence of NO3- than in the presence of CH3SO3-, and this agreed with the proposal. Transmission electron microscopy showed that the Ag nanoparticles had almost the same size, regardless of the anions.

Original languageEnglish
Pages (from-to)6624-6632
Number of pages9
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume44
Issue number22
DOIs
Publication statusPublished - 2006 Nov 15

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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