PHOTOINDUCED CATIONIC POLYMERIZATION OF EPOXIDES INITIAIED WITH IRON-ARENE COMPLEX

doi:10.7517/j.issn.1674-0475.1994.02.140

Abstract

Abstract: The polymerization kinetics and temperature effect on photoinduced cationic polymerization of p-cresylglycidylether (CGE) initiated with cyclopentadienyl-cumene-iron hexaflu-orophosphate was studied using isothermal DSC method.It is shown that the polylnerization rate and ultimate conversion are the maxima at around 55℃ and 45℃, respectively.The polymerization rate of CGE is proportional to CGE concelitration. Two basic reactionsare involved in the polymerization process,i.e., the complexation of the photolytic productof photoinitiator with the monomer and the ring-opening reaction of monomer startingfrom the complex formed.The temperature effect on these two reactions is opposite,i.e.,higher temperature is favorable for the latter but disadvantageous for the former.

Key words: iron-arene complex photoinitiator, epoxide, photoinduced cationicpolymerization, kinetics

CHEN YoNG-LIE, CHEN Xu-DONG, LIANG ZHAO-XI. PHOTOINDUCED CATIONIC POLYMERIZATION OF EPOXIDES INITIAIED WITH IRON-ARENE COMPLEX[J]. Imaging Science and Photochemistry, 1994, 12(2): 140-145.

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PHOTOINDUCED CATIONIC POLYMERIZATION OF EPOXIDES INITIAIED WITH IRON-ARENE COMPLEX

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