Study of radiation-induced grafting of acrylic acid-sodium styrene sulfonate onto poly (tetrafluoroethylene

LOW ENERGY ACCELERATOR, RAY TECHNOLOGY AND APPLICATIONS

Study of radiation-induced grafting of acrylic acid-sodium styrene sulfonate onto poly (tetrafluoroethylene–co-hexafluoropropylene) film

WANG Heng-Dong，

YE Yin，

ZHANG Xue-Bing，

QIU Shi-Long

Nuclear Science and Techniques

Vol.16, No.1

pp.25-30

Published in print 01 Feb 2005

CLC：O631.3+4,O621.3+92

23700

Poly(tetrafluoroethylene-co-hexafluoropropylene) (FEP) films were immersed in aqueous solution of acrylic acid (AA) and sodium styrene sulfonate (SSS), then irradiated by ⁶⁰Co γ-rays at 25℃. The effects of reaction time, absorbed dose, dose-rate, inhibitor and monomer concentration on the grafting yield were studied. Grafting yields of both AA and SSS onto FEP, respectively, increase with irradiation dose, but some saturation will appear at high dose and monomer concentration. The grafting yield increases with reaction time and then levels off. The grafting of SSS onto FEP is more difficult than the grafting of AA. The analysis of grafted membranes using DSC and FT-IR have been done.

Poly(tetrafluoroethylene-co-hexafluoropropylene)Radiation-induced graftingSodium styrene sulfonate

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