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Kinetics of alkaline hydrolysis and morphologies of novel poly(ethylene terephthalate) micro‐porous hollow fibers and functional characteristics of fabrics
Author(s) -
Tsen WenChin,
Hsiao KaiJen,
Shu YaoChi
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30058
Subject(s) - materials science , porosity , kinetics , hydrolysis , ethylene , alkaline hydrolysis , alkali metal , chemical engineering , composite material , swelling , poly ethylene , chemistry , catalysis , organic chemistry , physics , quantum mechanics , engineering
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 R 2 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