English, Article edition: PHOTOCHROMIC KINETICS OF ASYMMETRICAL DIARYLETHENES IN DIFFERENT SOLVENTS AND IN PMMA FILMS MIN LI; SHOUZHI PU; CHUNHONG ZHENG; ...

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Bookmark: http://trove.nla.gov.au/version/85011
Physical Description
  • article
Language
  • English

Edition details

Title
  • PHOTOCHROMIC KINETICS OF ASYMMETRICAL DIARYLETHENES IN DIFFERENT SOLVENTS AND IN PMMA FILMS
Author
  • MIN LI
  • SHOUZHI PU
  • CHUNHONG ZHENG
  • MINGBIAO LUO
  • ZHANGGAO LE
Physical Description
  • article
Notes
  • Three new asymmetric photochromic diarylethenes bearing fluorine atoms at the ortho-, meta-, or para-position of one terminal phenyl group were synthesized, and their photochromism and kinetics of the photochromic cyclization/​cycloreversion both in different solvents and in PMMA films were investigated. The results showed that the cyclization/​cycloreversion process of these compounds were determined to be zeroth/​first order reaction, and the reaction rates (k) were obtained from the slope of every line. The substituent position effect on the cycloreversion process of the three compounds was remarkable and the solvent polarity enhanced this effect. The values of reaction rates in PMMA films were quite different from those in solvents indicating that the kinetics processes of the three compounds taking place in PMMA films differs from the same processes occurring in common solvent.
  • Photochromic, kinetics, substituent position effect
  • RePEc:wsi:srlxxx:v:15:y:2008:i:01:p:145-151
Language
  • English
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