کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5186881 1381115 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Copolymeric dendritic macrophotoinitiators
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Copolymeric dendritic macrophotoinitiators
چکیده انگلیسی

Three kinds of copolymeric dendritic macrophotoinitiator DAB-4-TX-OC, DAB-16-TX-OC and DAB-64-TX-OC were synthesized by introducing thioxanthone (TX) and octene (OC) moieties into the periphery of dendrimer poly(propylene imine) (PPI), in order to get photoinitiators systems of high performance. The maximum of absorption (λmax) red-shifted slightly, and the fluorescence emission intensity and the lifetime of the triplet state for TX decreased, with the PPI's generation. Photopolymerization of methyl methacrylate (MMA) and trimethylolpropane triacrylate (TMPTA) initiated by these copolymeric dendritic photoinitiators shows that different photoinitiators exhibit different behaviors towards different monomers: DAB-64-TX-OC is the most efficient for MMA, and DAB-16-TX-OC is the most efficient for TMPTA.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 24, 21 November 2005, Pages 11079-11084
نویسندگان
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