Photo-oxidative degradation of poly(ethylene oxide) with small amount (1 and 3 wt.%) of cobalt (II) chloride was studied in acetonitrile solutions and in solid state. On the basis of FTIR, UV-Vis spectroscopy, GPC and viscometry measurements it was found that cobalt salt accelerates photodecomposition of PEO. DSC was applied for study of crystallinity changes in PEO and PEO 1 CoCl2 during UVirradiation. The structure of PEO 1 CoCl2, mechanism of photoreactions and the influence of physical factors are discussed.
Посилання на статтю:
Cobalt(II) chloride catalysed oxidative degradation of poly(ethylene oxide) by a short wavelength UV-radiation / A. Kamińska, H. Kaczmarek, J. Kowalonek // Polymer. – 1999. – N 40. – P. 5781–5791.