Journal of Thermal Analysis and Calorimetry

, Volume 113, Issue 3, pp 1231–1237 | Cite as

Melting kinetics of it-polypropylene crystals over wide heating rates

  • Akihiko Toda
  • Ken Taguchi
  • Kano Sato
  • Koji Nozaki
  • Masanori Maruyama
  • Katsuharu Tagashira
  • Misuzu Konishi


Melting kinetics of it-polypropylene crystals has been examined over wide heating rates of 0.6 K min−1−104 K s−1 using a standard DSC and a fast-scan DSC. With fast-scan DSC, we have an access to the melting of crystals obtained at low temperatures, which are susceptible to re-organization at the heating rates applicable with standard DSC. It is clearly discernible that the appearance and disappearance of multiple melting peaks are strongly influenced by the applied heating rates and dependent on the crystallization temperatures. By examining the heating rate dependence of superheating of melting, we have determined the melting points of as-grown crystals formed under wide crystallization temperatures.


Polymer crystals Melting kinetics Fast-scan DSC Polypropylene 



One of the authors (AT) wishes to thank Dr. H. Fadi (Mettler-Toledo K.K.) for providing the access to FlashDSC1TM. This study was supported by KAKENHI (Grant-in-Aid for Scientific Research) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2013

Authors and Affiliations

  • Akihiko Toda
    • 1
  • Ken Taguchi
    • 1
  • Kano Sato
    • 2
  • Koji Nozaki
    • 2
  • Masanori Maruyama
    • 3
  • Katsuharu Tagashira
    • 3
  • Misuzu Konishi
    • 4
  1. 1.Graduate School of Integrated Arts and SciencesHiroshima UniversityHigashi-HiroshimaJapan
  2. 2.Graduate School of Science and EngineeringYamaguchi UniversityYamaguchiJapan
  3. 3.R&D DivisionSunAllomer LtdKawasakiJapan
  4. 4.Mettler-Toledo K.K.TokyoJapan

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