Microscopic fourier transform infrared characterization on two types of spherulite with polymorphic crystals in poly(heptamethylene terephthalate)

Kai Cheng Yen, Eamor Woo, Kohji Tashiro

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

FTIR microspectrometry with in situ temperature variation and IR-peak-mapping capability, and POM characterization were used to study the crystal distribution in dual spherulites in poly(heptamethylene terephthalate). By tracing the crystalline IR bands of the α-crystal and β-crystal to get the crystal distribution, the techniques resolve that the ringed and ringless spherulites comprise α- and β-crystals, respectively. In addition, temperature-dependent IR analyses on the spots related to the two crystals also reveal the α- and β-crystals melt at 98 and 104°C, respectively. The ringed and ringless spherulites were proven to be correlated with the α- and β-crystal forms, respectively. (Figure Presented)

Original languageEnglish
Pages (from-to)1343-1347
Number of pages5
JournalMacromolecular Rapid Communications
Volume31
Issue number15
DOIs
Publication statusPublished - 2010 Aug 3

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

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