Electric Field Effects on Cationic Polymerisation

The technique of electrodialysis appears to us as a very complicated and unrewarding way of studying cationic polymerisations and we feel that the propagation rate constants and other supposedly fundamental studies reported by D yachkovskii s group are not entirely reliable because of the large number of assumptions required for the treatment of the experimental data. 

A special instance of photoinitiation was already di us in Sect. VI-B, within the context of bare cation formation. In those sterns in fact, h -energy photons were used to produce the ejection of an electron from the moiK mer molecule. In this chapter we will briefly review other photochemical tediniques involving the framation of electronically excited intermediates, which in turn generate suitable species for the initiation of cationic polymerisation. Crivello has recently reviewed this topic and other authors have published more specialised monographs on some specific aspects of cationic photo-initiation. We will therefore reduce our coverage to the basic premises on whidi the various methods are founded and to a few comments on the more recent contributions and medianistic interpretations. 

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