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2013•Journal of Wuhan Textile UniversityRequires access

Characterization and Synthesis Process Optimization of Sulfonated Poly(Ether Ether Ketone)

Hongwei Zhang

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Abstract

In order to reduce the consumption of concentrated sulfuric acid,a cross-experiment for the sulfonation of poly(ether ether ketone)s was designed and carried out.The sulfonated poly(ether ether ketone)s(SPEEK) were charactered by the acid-base titration and the fourier transform infrared attenuated total reflection(FTIR-ATR).Based on the results of ion-exchange capacity of SPEEKs,the influential parameters to sulfonation were ordered: the reaction temperature reaction time ratio of PEEK to concentrated sulfuric acid.Under the optimum reaction conditions,only about 7 ml concentrated sulfuric acid was used for the sulfonation of per 1 g PEEK,which was only 7～30% of the values reported in literatures.

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What this paper is about

In order to reduce the consumption of concentrated sulfuric acid,a cross-experiment for the sulfonation of poly(ether ether ketone)s was designed and carried out.The sulfonated poly(ether ether ketone)s(SPEEK) were charactered by the acid-base titration and the fourier transform infrared attenuated total reflection(FTIR-ATR).Based on the results of ion-exchange capacity of SPEEKs,the influential parameters to sulfonation were ordered: the reaction temperature reaction time ratio of PEEK to concentrated sulfuric acid.Under the optimum reaction conditions,only about 7 ml concentrated sulfuric acid was used for the sulfonation of per 1 g PEEK,which was only 7～30% of the values reported in literatures.

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Available abstract

In order to reduce the consumption of concentrated sulfuric acid,a cross-experiment for the sulfonation of poly(ether ether ketone)s was designed and carried out.The sulfonated poly(ether ether ketone)s(SPEEK) were charactered by the acid-base titration and the fourier transform infrared attenuated total reflection(FTIR-ATR).Based on the results of ion-exchange capacity of SPEEKs,the influential parameters to sulfonation were ordered: the reaction temperature reaction time ratio of PEEK to concentrated sulfuric acid.Under the optimum reaction conditions,only about 7 ml concentrated sulfuric acid was used for the sulfonation of per 1 g PEEK,which was only 7～30% of the values reported in literatures.

Key concepts: Peek, Sulfuric acid, Ether, Ketone, Titration, Fourier transform infrared spectroscopy, Chemistry, Polymer chemistry

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