Characteristics of multiblock terpoly(ester-ether-siloxane) elastomers

  • Rosłaniec Z
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Abstract

The structure and physical properties of multiblock terpoly(ester-ether-siloxane) elastomers (EES) have been examined by differential scanning calorimetry, dynamic mechanical analysis, optical microscopy and other standard physical methods. Terpolymers consisted of poly(butylene terephthalate) (PBT), poly-(oxytetramethylene) (PO4) and poly(dimethylsiloxane) (PDMS) segments. The content and length of segments was changed at a constant PBT:PO4 mass ratio of 45:55. At PDMS content above 10% terpolymers were characterized by three glass transition temperatures. EES was characterized by two temperature ranges of elastic state. The characteristic of terpolymers results from their multimicrophase structure and is very specific for thermoplastic elastomers. ?? 1992.

Author-supplied keywords

  • terpoly(ester-ether-siloxane)s
  • thermoplastic elastomers

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Authors

  • Zbigniew Rosłaniec

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