Get access

Isothermal crystallization kinetics of poly(butylene terephthalate-co-sebacate) copolymer

Authors

  • Zuoxiang Zeng,

    Corresponding author
    1. Department of Chemical Engineering, Institute of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
    • Department of Chemical Engineering, Institute of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
    Search for more papers by this author
  • Hailing Zhang,

    1. Department of Chemical Engineering, Institute of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
    Search for more papers by this author
  • Weilan Xue,

    1. Department of Chemical Engineering, Institute of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
    Search for more papers by this author
  • Wanyu Zhu,

    1. Shanghai Tianyang Hotmelt Adhesives Co., Ltd, 201802 Shanghai, People's Republic of China
    Search for more papers by this author
  • Xiaoling Xiao,

    1. Department of Chemical Engineering, Institute of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
    Search for more papers by this author
  • Yu Sun,

    1. Department of Chemical Engineering, Institute of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China
    Search for more papers by this author
  • Zhelong Li

    1. Shanghai Tianyang Hotmelt Adhesives Co., Ltd, 201802 Shanghai, People's Republic of China
    Search for more papers by this author

Abstract

Poly(butylene terephalate) (PBT) and poly(butylene terephthalate-co- sebacate) (PBTS) copolymers containing 5 mol % and 10 mol % sebacate components (Mn = 12,700–14,600) were synthesized by polycondensation. The isothermal crystallization kinetics and melting behaviors after isothermal crystallization of the polymers were investigated by differential scanning calorimetry (DSC). The equilibrium melting temperatures of the polymers were determined by Hoffman-Weeks equation. Analysis of the crystallization kinetic data using the Avrami equation showed that the introduction of sebacate enhanced the crystallization of PBT in PBTS. And the Avrami exponent n varies in the range of 2.16–3.68, indicating that the isothermal crystallization follows two- and three-dimensional growth mechanism. The isothermal crystallization activation energies of the polymers were also calculated by the Arrhenius equation. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

Ancillary