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

  • R. P. Singh
  • R. Chandra
  • A. Syamal
Physical and Theoretical


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.


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


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Copyright information

© Indian Academy of Sciences 1981

Authors and Affiliations

  • R. P. Singh
    • 1
    • 2
  • R. Chandra
    • 1
  • A. Syamal
    • 1
  1. 1.Department of Applied ChemistryRegional Engineering CollegeKurukshetraIndia
  2. 2.Polymer Chemistry DivisionNational Chemical LaboratoryPuneIndia

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