Different thermal analysis technique application in determination of fold surface-free energy

Abolhasani, Mohammad Mahdi, Rezaei Abadchi, Majid Rezaei, Magniez, Kevin and Guo, Qipeng 2015, Different thermal analysis technique application in determination of fold surface-free energy, Journal of thermal analysis and calorimetry, vol. 119, no. 1, pp. 527-536, doi: 10.1007/s10973-014-4121-8.

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Title Different thermal analysis technique application in determination of fold surface-free energy
Author(s) Abolhasani, Mohammad Mahdi
Rezaei Abadchi, Majid Rezaei
Magniez, Kevin
Guo, QipengORCID iD for Guo, Qipeng orcid.org/0000-0001-7113-651X
Journal name Journal of thermal analysis and calorimetry
Volume number 119
Issue number 1
Start page 527
End page 536
Total pages 10
Publisher Springer
Place of publication New York, N.Y.
Publication date 2015
ISSN 1388-6150
Keyword(s) Crystallization rates
Fold surface-free energy
Polymer blends
Spherulitic growth
Science & Technology
Physical Sciences
Chemistry, Analytical
Chemistry, Physical
Summary In this work, the crystallization rates and spherulitic growth rate of miscible blends of poly(vinylidene fluoride) (PVDF) and acrylic rubber (ACM) were determined using differential scanning calorimetry (DSC), real-time FTIR, and optical microscopy. FTIR results suggest that blending does not induce the creation of polymorphic crystalline forms of PVDF. SAXS data demonstrate the formation of interlamellar structure after blending. The fold surface-free energy (σ e) was analyzed and compared using different thermal analysis techniques. The isothermal crystallization curves obtained using real-time FTIR and DSC explored in two different methods: t 1/2 or Avrami equation. While the Avrami equation is more widespread and precise, both analytical methods gave similar free energy of folding values. However, it was found that the direct optical method of measuring spherulitic growth rate yields σ e values 30-50 % lower than those obtained from the overall crystallization rate data. Conversely, the σ e values were found to increase with increasing amorphous ACM phase content regardless of the analytical methods.
Language eng
DOI 10.1007/s10973-014-4121-8
Field of Research 091209 Polymers and Plastics
Socio Economic Objective 860607 Plastic Products (incl. Construction Materials)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Springer
Persistent URL http://hdl.handle.net/10536/DRO/DU:30074733

Document type: Journal Article
Collection: Institute for Frontier Materials
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