kinetic studies of photopolymerisation and photocrosslinking of difunctional allylic and acrylic monomers

By Ignazio Renato Bellobono, Department of Physical Chemistry and Electrochemistry, University of Milan - RadTech Europe Conference 1989

Some recent results obtained in photopolymerisation and photocross—linking of difunctional allylic and acrylic model monomers are presented.

These studies concern: i) some kinetic features of photo—chemical crosslinking and the physical models which are best suitable to their interpretation; ii) the fate of trapped radicals; iii) effects of radiation intensity on mechanism; iv) thermal, oxygen, and catalyst assisted chain transfer in relation to mechanism. Ideal requirements and efficiency of chain transfer agents may be defined and tested by kinetic and relaxation models, by mean lifetime of relaxation spectrum particularly.