| abstract |
The present invention relates to the use of triazenes of formula (I) as precursors for radicals useful in reactions initiated by free radicals, such as polymerization of unsaturated monomers and decomposition of polyolefins: <Formula I> Wherein Q is a direct bond or a divalent radical-(CR 8 R 9 )-and Z 1 is -O-, -NR 10- , -CH 2 -,-(CR 11 R 12 )-or -C ( = O)-and R 1 to R 12 are optionally substituted hydrocarbon residues. Most of the triazenes of formula (I), as well as the preparation of triazenes of formula (I) and polymerizable compositions comprising them, are novel and claimed. |