Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 104, Issue 2, Pages 1131-1137Publisher
WILEY
DOI: 10.1002/app.25606
Keywords
elastomers; structure-property relations; thermal properties; thermoplastics
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Thermoplastic poly(glycerol sebacate) (TMPGS) elastomers originating from three prepolymers with different molecular weights were prepared first, and then the structure and properties were studied. Specifically, by swelling tests, gel permeation chromatography, X-ray diffraction, and differential scanning calorimetry, the crosslinking densities, sol contents and compositions, crystallization, and thermal performances of three TMPGSs were examined. Finally, the degradability in a 37 degrees C phosphate-buffered saline solution (pH = 7.4) was also illuminated. The three TMPGSs had similar chemical structures, but the different molecular weights of the prepolymers influenced their final compositions and properties to a great extent. Furthermore, both hydrogen bonding and plasticization action in the elastomers played important roles in balancing the overall properties of the TMPGS elastomers. (c) 2007 Wiley Periodicals, Inc.
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