Abstract
The behaviour of a photo-initiator-triphenylsulphonium hexafluorophosphate-during oligomerization of propylene oxide has been studied under different reaction conditions. Rupture of the oxyrane rings and the appearance of absorption bands of polypropylene oxide in the IR spectrum of the reaction mixture is accompanied by changes in the spectrum of the photo-initiator primarily affecting the absorption bands of the phenyl rings sensitive to substituents and conjugation. The features of oligomerization of propylene oxide-course of the dark reaction in the initially irradiated “blanks” and the photo-initiating capacity of the residue precipitating on oligomerization-may be of practical importance for obtaining oligomers and polymers based on epoxide compounds.
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