Abstract

This paper presents a discussion of recent work carried out on photopolymerization and notes the necessity of further investigation in this area. Emphasis is laid on the specific role of the different elements of the composition, especially the initiator and the monomer. Typical examples of the behaviour of the excited states involved (investigated through laser spectroscopy) are reported. They lead to a better insight into the photophysical and photochemical processes involved and allow a general discussion of the initiation reaction efficiency according to the monomer-initiator pair used. Moreover, the results of several polymerization experiments obtained under various conditions of irradiation (conventional sources, pulsed or continuous lasers) are compared and commented upon.

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