A study of the elemental reactions involved in the initiation of the polymerization of tetrahydrofuran induced by the photosensitization of a triphenylsulphonium salt by perylene
Document title: A study of the elemental reactions involved in the initiation of the polymerization of tetrahydrofuran induced by the photosensitization of a triphenylsulphonium salt by perylene
Journal: Journal of the Brazilian Chemical Society
Database: PERIÓDICA
System number: 000311244
ISSN: 0103-5053
Authors: 1
2
Institutions: 1Universidade de Sao Paulo, Instituto de Quimica de Sao Carlos, Sao Carlos, Sao Paulo. Brasil
2Universidade do Vale do Paraiba, Sao Jose dos Campos, Sao Paulo. Brasil
Year:
Season: Ene
Volumen: 14
Number: 1
Pages: 76-82
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract The photopolymerization of THF was studied in the presence of a triphenylsulphonium salt and perylene. The mechanism involves an electron transfer from the excited singlet state of perylene to triphenylsulphonium ions, resulting in perylene cation radicals that react with tetrahydrofuran. The calculated apparent yield of cation radicals follows the same general trend than the measured polymerization rates
Portuguese abstract A fotopolimerização de THF foi estudada na presença de sal de trifenilsulfônio e perileno. O mecanismo envolve uma transferência de elétron do estado singlete excitado do perileno para os íons trifenilsulfônio, levando à formação de cátions radicais, que reagem com o tetrahidrofurano. O rendimento aparente de cátions radicais calculado do mecanismo proposto tem o mesmo comportamento geral que as velocidades de polimerização medidas experimentalmente
Disciplines: Química
Keyword: Química de polímeros,
Química orgánica,
Tetrahidrofurano,
Fotopolimerización,
Perileno
Keyword: Chemistry,
Organic chemistry,
Polymer chemistry,
Tetrahydrofuran,
Photopolymerization,
Perylene
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