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  • 1 National Defense Academy Department of Chemistry 1-10-20, Hashirimizu Yokosuka, Kanagawa 239-8686 Japan 1-10-20, Hashirimizu Yokosuka, Kanagawa 239-8686 Japan
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Abstract  

Poly(2-hydroxymethyl methacrylate) (PHEMA) suspension in anisole shows temperature dependent iridescence between 0 and 60C. To reveal the mechanism of the temperature-dependent iridescence, PHEMA-anisole mixtures were prepared, and their thermal behaviors have been studied by dynamic DSC (DDSC) technique. All the mixtures showed a broad peak at 325 K on loss part of DDSC curves (loss Cpcurve), and showed a gentle step change between 250 and 340 K on the storage part (storageCp curve). A temperature region of these changes matched the observation of iridescence change. Temperature of the step change depended on the composition of mixture. The temperature dependence of iridescence of the polymer mixture has been attributed to the conformational changes of PHEMA chains.

Manuscript Submission: HERE

  • Impact Factor (2019): 2.731
  • Scimago Journal Rank (2019): 0.415
  • SJR Hirsch-Index (2019): 87
  • SJR Quartile Score (2019): Q3 Condensed Matter Physics
  • SJR Quartile Score (2019): Q3 Physical and Theoretical Chemistry
  • Impact Factor (2018): 2.471
  • Scimago Journal Rank (2018): 0.634
  • SJR Hirsch-Index (2018): 78
  • SJR Quartile Score (2018): Q2 Condensed Matter Physics
  • SJR Quartile Score (2018): Q2 Physical and Theoretical Chemistry

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
4
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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