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Electrospun fiber membranes of novel thermoplastic polyester elastomers: Preparation and characterization

Authors

  • Ding Cao,

    1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
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  • Zhifeng Fu,

    Corresponding author
    1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
    • State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
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  • Congju Li

    Corresponding author
    1. Beijing Key Laboratory of Clothing Materials R&D and Assessment, College of Material Science and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
    • Beijing Key Laboratory of Clothing Materials R&D and Assessment, College of Material Science and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, People's Republic of China
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Abstract

Electrospinning nanotechnology has recently attracted lots of attention in different kinds of applications. Poly(butylene terephthalate) random-segment copolymers, named poly[(butylene terephthalate)-co-(1,4-cyclohexanedimethanol terephthalate)]-b-poly(tetramethylene glycol) (P(BT-co-CT)-b-PTMG), were synthesized in this study. On the basis of the new thermoplastic polyester elastomers (TPEEs), the fiber membranes were subsequently electrospun. With the aid of a cosolvent of trifluoroacetic acid and dichloromethane, the resulting solutions with a concentration between 24 and 32% w/v were electrospun into fibers without beads. The results also show a good spinnability for the copolymer solution in a range of voltages from 16 to 24 kV. When the molar ratio of 1,4-cyclohexanedimethanol to 1,4-butanediol was 10 : 90, the electrospun membrane prepared by the corresponding copolymers had a higher elastic modulus than the commercial TPEE (Hytrel 4056, 4.51 ± 0.35 MPa). Differential scanning calorimetry and X-ray diffraction showed that a crystalline phase existed in the electrospun poly[(butylene terephthalate)-co-(1,4-cyclohexanedimethanol terephthalate)]-b-poly(tetramethylene glycol) (P(BT-co-CT)-b-PTMG) copolymer fiber membranes. The melting point of the electrospun fibers was approximately less than that of the corresponding copolymers © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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