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UV-curable epoxy silicone with a high refractive index and self-photosensitizing effect / Wang, Tao in Industrial & engineering chemistry research, Vol. 51 N° 49 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 49 (Décembre 2012) . - pp. 15832-15838 Titre : UV-curable epoxy silicone with a high refractive index and self-photosensitizing effect Type de document : texte imprimé Auteurs : Wang, Tao, Auteur ; Hui Ye, Auteur ; Xianshun Zhang, Auteur Année de publication : 2013 Article en page(s) : pp. 15832-15838 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Ultraviolet  radiation Résumé : The present work addresses a demand for cationically UV-curable optically transparent monomers and oligomers with high photopolymerization activity and high refractive indexes (RIs). Two novel kinds of epoxy silicones, carbazole-bound epoxy tetramethylcyclotetrasiloxane (Ep-Cz-Si) and carbazole-bound epoxy methylhydrogen silicone oil (Ep-Cz-SiO), were synthesized from 1,3,5,7-tetramethylcyclotetrasiloxane (D4H) and methylhydrogen silicone oil (HHSiO), respectively. Their structures were confirmed by proton nuclear magnetic resonance (1H NMR) and Fourier transform infrared (FT-IR) spectroscopy. Ep-Cz-Si and Ep-Cz-SiO show strong self-photosensitizing effects in photopolymerization and can be photoinitiated directly by a common onium salt photoinitiator under a high-pressure mercury lamp. The RIs of Ep-Cz-Si and Ep-Cz-SiO improve with increasing carbazole content. The photocured networks from Ep-Cz-Si and Ep-Cz-SiO show good thermal stabilities. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732108 [article] UV-curable epoxy silicone with a high refractive index and self-photosensitizing effect [texte imprimé] / Wang, Tao, Auteur ; Hui Ye, Auteur ; Xianshun Zhang, Auteur . - 2013 . - pp. 15832-15838. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 49 (Décembre 2012) . - pp. 15832-15838 Mots-clés : Ultraviolet  radiation Résumé : The present work addresses a demand for cationically UV-curable optically transparent monomers and oligomers with high photopolymerization activity and high refractive indexes (RIs). Two novel kinds of epoxy silicones, carbazole-bound epoxy tetramethylcyclotetrasiloxane (Ep-Cz-Si) and carbazole-bound epoxy methylhydrogen silicone oil (Ep-Cz-SiO), were synthesized from 1,3,5,7-tetramethylcyclotetrasiloxane (D4H) and methylhydrogen silicone oil (HHSiO), respectively. Their structures were confirmed by proton nuclear magnetic resonance (1H NMR) and Fourier transform infrared (FT-IR) spectroscopy. Ep-Cz-Si and Ep-Cz-SiO show strong self-photosensitizing effects in photopolymerization and can be photoinitiated directly by a common onium salt photoinitiator under a high-pressure mercury lamp. The RIs of Ep-Cz-Si and Ep-Cz-SiO improve with increasing carbazole content. The photocured networks from Ep-Cz-Si and Ep-Cz-SiO show good thermal stabilities. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732108