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Crystallization of Poly(ethylene terephthalate)

  • E. L. Lawton
  • D. M. Cates

Abstract

It has been reported that several endothermic melting transitions exist in differential thermal analysis thermograms of polyethylene.1 Similar transitions are reported in differential scanning calorimetric thermograms of poly (ethylene terephthalate)2 and bisphenol-A polycarbonate.3 The appearance of separate melting endotherms in these polymers is evidence that almost completely discontinuous distributions of crystallite sizes or perfections can be induced in a polymer by appropriate thermal treatments.4 At present, there is no evidence of the existence of polymorphic crystalline modifications in poly (ethylene terephthalate).

Keywords

Enthalpy Change Crystallinity Index Crystalline Polymer Ethylene Terephthalate Diethylene Glycol 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press 1968

Authors and Affiliations

  • E. L. Lawton
    • 1
  • D. M. Cates
    • 1
  1. 1.Department of Textile ChemistryNorth Carolina State UniversityRaleighUSA

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