4.5 Article

Crystallization behavior of partially miscible biodegradable poly(butylene succinate)/poly(ethylene succinate) blends

期刊

THERMOCHIMICA ACTA
卷 529, 期 -, 页码 80-86

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.tca.2011.11.031

关键词

Poly(butylene succinate); Poly(ethylene succinate); Blend; Miscibility; Crystallization

资金

  1. Specialized Research Fund for the Doctoral Program of Higher Education [20110181130008]
  2. Program of International S T Cooperation [2011DFA51420]
  3. Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China [IRT 1026]

向作者/读者索取更多资源

Biodegradable blend of poly(butylene succinate) (PBS) and poly(ethylene succinate) (PES) was prepared by solution blending and casting method with chloroform as a mutual solvent. Miscibility of the blends was investigated by differential scanning calorimetry (DSC). The results indicated that PBS and PES were partially miscible. Crystallization kinetics, crystalline morphology and crystal structure of the blends were studied by DSC, polarized optical microscope (POM), and wide-angle X-ray diffraction (WAXD), respectively. Nonisothermal and isothermal crystallization kinetics suggested that the crystallizability of PBS in the blends decreased first and then increased with increase in PES content, and that of PES increased steadily with increase in PBS content. POM observation illustrated that the rich component formed a continuous phase and the other formed a dispersed phase. The results of WAXD indicated that the crystal structures of PBS and PES were almost unchanged before and after blending, since the positions of characteristic diffraction peaks of both components remain almost unchanged. (C) 2011 Elsevier B.V. All rights reserved.

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