Effect of comonomers on the rate of crystallization of PET: U‐turn comonomers

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公開日
2001-05-30
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/app.1599
公開者
Wiley

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<jats:title>Abstract</jats:title><jats:p>The effect of incorporating phthalate, 1,8‐naphthalenedicarboxylate, and 1,8‐anthracenedicarboxylate structural units on the crystallization rate of PET are evaluated by isothermal and dynamic calorimetry. Although all of the comonomers retard crystallization, the 1,8‐naphthalene unit shows no concentration dependence between 2.5 and 10% incorporation, in contrast to the smaller phthalate and larger anthracene units. The greater rate at which the 1,8‐naphthalene copolymer crystallizes, relative to that of the other copolymers, is consistent with the notion that the U‐turn geometry induces chain folding and nucleates crystallization. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 1675–1682, 2001</jats:p>

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