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Energy transfer in polymers—IV. Singlet and triplet energy transfer in polymethylvinylketone films

✍ Scribed by C. David; N. Putman; M. Lempereur; G. Geuskens

Publisher
Elsevier Science
Year
1972
Tongue
English
Weight
284 KB
Volume
8
Category
Article
ISSN
0014-3057

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✦ Synopsis

~aet--The etfieiency of transfer from the triplet of polymethylvinylketone (PMVK) to naphthalene has been measured at 77°K. The critical distance of transfer according to Hirayama is 11.3 A. This is the usual value of Ro for exchange interaction without migration. Singiet energy transfer from the polymer to benzophenone occurs when donor and acceptor are very close together, at room temperature. In the system PMVK-anthracene, the emission spectrum shows that microcrystals of the additive are formed in the polymer even at low concentration.

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