A calorimetric study of changes in crystalline polymers and their blends under the simultaneous action of high pressures and shear strains

  • Zhorin V
  • Godovskii Y
  • Yenikolopyan N
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The changes in crystalline polymers, caused by simultaneous action of high pressures and shear strains, have been studied by differential scanning calorimetry. Polymer treatments were performed at room temperature and 5-60 kbars pressure. HDPE, LDPE, PP, PEO polycaproamide, PETPh, polybutylene terephthate, polyurethane and some blends of these polymers were studied. A new peak was found in the thermograms of polymers which have a glass transition point below room temperature. It was shown that the crystallinity of some polymers may be increased as a result of high pressure treatment. © 1983.

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  • V. A. Zhorin

  • Yu K. Godovskii

  • N. S. Yenikolopyan

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