Synthesis and characterization of composites based on polyaniline and styrene–divinylbenzene copolymer using benzoyl peroxide as oxidant agent

This work presents a method to prepare composites based on polyaniline (Pani) and styrene–divinylbenzene copolymers (SD) by in situ polymerization of aniline using benzoyl peroxide as oxidant agent. The composites were obtained from copolymers with two degrees of porosities which have higher and low...

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Bibliographic Details
Published in:Reactive & functional polymers 2013-09, Vol.73 (9), p.1255-1261
Main Authors: Moura, B.H.F., Assis, R.H.B., Franco, P.I.B.M., Antoniosi Filho, N.R., Rabelo, D.
Format: Article
Language:English
Subjects:
Aniline
Applied sciences
Benzoyl peroxide
Composites
Copolymers
Exact sciences and technology
Organic polymers
Oxidants
Particulate composites
Physicochemistry of polymers
Polyaniline
Polyanilines
Polymer matrix composites
Polymerization
Polymers with particular properties
Porosity
Preparation, kinetics, thermodynamics, mechanism and catalysts
Styrene-divinylbenzene copolymer
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Summary:This work presents a method to prepare composites based on polyaniline (Pani) and styrene–divinylbenzene copolymers (SD) by in situ polymerization of aniline using benzoyl peroxide as oxidant agent. The composites were obtained from copolymers with two degrees of porosities which have higher and lower surface areas. Emeraldine Pani was prepared using hydrochloric acid as dopant. One cycle or four cycles of aniline polymerization were performed. The copolymers and their respective composites characterizations were performed by infrared spectroscopy, thermogravimetric analysis, physical nitrogen adsorption–desorption measurements, morphology analysis, elemental analysis and determination of Brönsted acid sites. The Pani was distributed overall porous SD copolymer producing composites with high surface area. Then, they were evaluated as catalysts for esterification reaction of a fat acid. It was found that that composites prepared with four cycles of in situ polymerization presented best catalytic activity than one cycle composites.
ISSN:1381-5148
DOI:10.1016/j.reactfunctpolym.2013.06.008