Polymers with furyl groups at chain-ends: the use of 2-styrylfuran as an additive in radical polymerizations

摘要

2-Sytylfuran (STF) resembles stilbene and certain other 1,2-substitued ethylenes, e.g. 2-styrylthiophene, in being very effective in capturing benzoyloxy radicals. When STF is used as an additive during polymerization of a monomer such as methyl methacryulate with benzoly peroxide as initiator, it is incorporated preferenctially at sites adjacent to benzoate end-groups to give macromolecules with furyl groups very close ot chain-ends.