structural Influence Of Fumarate Esters In Free Radical Induced Alternating Copolymerization

Free radical induced alternating copolymerisation by a donor(D)-acceptor(A) complex is a
classical field of photo chemistry, which has recently gained a lot of interest (2,3,4).

The formation of an AD* can take place from an excited state donor or acceptor, whereby
the D* or A* associates with a ground state A or D. The other route is a direct excitation of
the ground state charge transfer, CT, complex. It is suggested in the literature that in some
cases these two different mechanisms generate photochemically identical excited state
"species". In many cases both of these excitation mechanisms might occur simultaneously.