Abstract
Yields and lifetimes of triplet states of 2-vinylnaphthalene (2-VN) incorporated as comonomer in copolymers with phenyl vinyl ketone (PVK) were measured in benzene solution at room temperature. Samples were irradiated with 347.1-nm light flashes. Light absorbed by PVK moieties was effectively transferred to 2-VN moieties. With a copolymer sample containing about 20-mol% 2-VN and possessing at the end of the flash about 20 triplet excited 2-VN base units per macromolecule, it was possible to evidence both inter- and intramolecular T—T annihilation.The triplet energy transfer from PVK to 2-VN appeared to be accomplished predominantly by an intramolecular process possibly including energy migration along the chain within PVK segments.
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Hayashi, K., Irie, M., Kiwi, J. et al. Laser Flash Photolysis Studies of Copolymers of Phenyl Vinyl Ketone and Vinylnaphthalene in Benzene Solution. Polym J 9, 41–45 (1977). https://doi.org/10.1295/polymj.9.41
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DOI: https://doi.org/10.1295/polymj.9.41