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    National Tsing Hua University Institutional Repository > 工學院  > 材料科學工程學系 > 期刊論文 >  Acetone transport in poly(ethylene terephthalate) and related phenomena


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/62230


    Title: Acetone transport in poly(ethylene terephthalate) and related phenomena
    Authors: Hao OY;Chen CC;Lee S;Yang HJ
    教師: 李三保
    Date: 1998
    Publisher: John Wiley & Sons
    Relation: Journal of Polymer Science: Part B:
    Polymer physics Vol. 36, pp. 163-169 (1998).
    Keywords: CASE-II DIFFUSION
    POLY ETHYLENE TEREPHTHALATE
    GLASSY POLYMERS
    MECHANICAL DEFORMATION
    METHANOL TRANSPORT
    POLY(ETHYLENE-TEREPHTHALATE)
    PMMA
    MORPHOLOGY
    SORPTION
    STRESS
    Abstract: The acetone transport in poly(ethylene terephthalate) (PET) and related phenomena was investigated. Based on Harmon's model for Case I, Case II, and the anomalous transport, we analyzed the data of mass uptake. The diffusivity for Case I and the velocity for Case II satisfied the Arrhenius plot. It was found that the solvent moves from outer surfaces to the center according to Case I kinetics, and there is movement in the opposite direction according to Case II kinetics during the mass uptake. This result indicated that pure Case II behavior did not appear in the PET-acetone system. The saturated amount of acetone in PET satisfied the van't Hoff plot. X-ray diffraction pattern and DSC curve showed solvent-induced crystallites and thermal crystallites. The results of density measurement explained the difference of the sorption kinetics between the acetone-treated PET crystallites and thermally treated PET.
    URI: http://www3.interscience.wiley.com/journal/36709/abstract?CRETRY=1&SRETRY=0
    http://www.wiley.com/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/62230
    Appears in Collections:[材料科學工程學系] 期刊論文

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