Synthesis of polyaniline/polytoluidine block copolymer via the pernigraniline oxidation state | Zendy

Mattoso Luiz H. C. | Zendy; Oliveira Osvaldo N. | Zendy; Faria Roberto M. | Zendy; Manohar Sanjeev K. | Zendy; Epstein Arthur J. | Zendy; Macdiarmid Alan G. | Zendy

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Synthesis of polyaniline/polytoluidine block copolymer via the pernigraniline oxidation state

Author(s) -

Mattoso Luiz H. C.,

Oliveira Osvaldo N.,

Faria Roberto M.,

Manohar Sanjeev K.,

Epstein Arthur J.,

Macdiarmid Alan G.

Publication year - 1994

Publication title -

polymer international

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.592

H-Index - 105

eISSN - 1097-0126

pISSN - 0959-8103

DOI - 10.1002/pi.1994.210350110

Subject(s) - polyaniline , copolymer , oxidation state , cyclic voltammetry , toluidine , polymer chemistry , aqueous solution , chemistry , gel permeation chromatography , materials science , electrochemistry , electrode , catalysis , organic chemistry , polymerization , polymer

Polyaniline was electrochemically synthesized in the emeraldine oxidation state and then converted to the pernigraniline oxidation state by applying an electric potential under optimized conditions. The stability/reactivity of polyaniline in the pernigraniline oxidation state was evaluated in various aqueous media. The products of the reduction of the pernigraniline oxidation state by o ‐toluidine were analyzed by gel permeation chromatography, ultraviolet–visible and infrared spectroscopies, and cyclic voltammetry. The results are consistent with the synthesis of a diblock copolymer of polyaniline/poly( o ‐toluidine) and also of some poly( o ‐toluidine) homopolymer in the emeraldine oxidation state as a side product.

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