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Kinetics of alkaline hydrolysis and morphologies of novel poly(ethylene terephthalate) micro-porous hollow fibers and functional characteristics of fabrics

Authors

  • Wen-Chin Tsen,

    1. Department of Polymer Materials, Vanung University, Chungli City, Taiwan 320, Republic of China
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  • Kai-Jen Hsiao,

    Corresponding author
    1. Division of Advanced Fiber and Bio Materials Research, Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan 300, Republic of China
    • Division of Advanced Fiber and Bio Materials Research, Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan 300, Republic of China
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  • Yao-Chi Shu

    1. Department of Polymer Materials, Vanung University, Chungli City, Taiwan 320, Republic of China
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Abstract

This investigation explores the kinetics of the alkaline hydrolysis of regular poly(ethylene terephthalate) (PET) solid fibers and PET micro-porous hollow fibers, using statistical regression analysis. Statistical regression analysis results concerning the kinetics of the alkaline hydrolysis of regular PET solid fibers and PET micro-porous hollow fibers yielded a β value of 1. The R2 of the kinetic equation for α values from 1.07 to 1.16 exceeded that for α = 1. The rate constants of alkaline hydrolysis followed the order PET micro-porous hollow fibers ≫ regular PET solid fibers. A morphology of large pores of diameter 0.1–3.5 μm was observed following alkali treatment of the PET micro-porous hollow fibers. The weight loss percentage of the hollow fibers was around 20%. The hollowness of the PET micro-porous hollow fibers after alkali treatment was between 30 and 32%. The PET micro-porous hollow fibers exhibited simultaneous water-absorption/release and keep-warm functions. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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