• Physico-chemical studies on the photostabilization of poly(1-butene) film

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      https://www.ias.ac.in/article/fulltext/jcsc/090/02/0093-0103

    • Keywords

       

      Isotactic poly(1-butene); o-phenanthroline bis(1,3-diphenyl triazine-1-oxide)-cobalt(II); photodegradation; photo-stabilization

    • Abstract

       

      Thin films of poly(1-butene) with and withouto-phenanthroline bis(1,3-diphenyl triazine-1-oxide)-cobal(II) [I] in the temperature range of 233–333° K have been degraded in air from a UV light of 253.7 nm. The changes in weight average molecular weights, degree of degradation, quantum yields, enthalpy and free energy of activation, and carbonyl and hydroperoxide contents, were followed as a function of the time of irradiation. The inhibition effect ofI is discussed on the basis of the luminescence and UV spectral data. The chelateI behaves both as a thermal and UV stabilizer due to a combination of different kinds of activity in the same molecule.

    • Author Affiliations

       

      R P Singh1 2 R Chandra1 A Syamal1

      1. Department of Applied Chemistry, Regional Engineering College, Kurukshetra - 132 119, India
      2. Polymer Chemistry Division, National Chemical Laboratory, Pune - 411 008, India
    • Dates

       
  • Journal of Chemical Sciences | News

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