Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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Synthesis and Characteristic of Polyurethane Modified Silicone

  • Received : 2015.08.18
  • Accepted : 2015.09.03
  • Published : 2015.09.30
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Abstract

Polyurethane modified silicone (PUMS) was synthesized from various molecular weights of polydimethylsiloxane (PDMS 2000, PDMS 6000, PDMS 20000), polypropyleneglycol with molecular weight of 3000 g/mol (PPG 3000) and 2,4-toluenediisocyanate (TDI) under tin catalyst. Their structures were confirmed by the measurement of FT-IR and $^1H-NMR$, and the thermal properties were studied from DSC and TGA. Glass transition temperature of PUMS exhibited exothermic peak at $-63{\sim}-69^{\circ}C$, and residual weight was 19~35% at $800^{\circ}C$.

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References

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