کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10632964 992907 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparative studies of polyimides with covalently bonded azo-dyes with their supramolecular analoges: Thermo-optical and photoinduced properties
ترجمه فارسی عنوان
مطالعات تطبیقی ​​پلی امید ها با رنگ های آئروسیتومی کووالانسی با مقادیر سوپرومولکولیک آنها: خواص ترمو نوری و عکس دار
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
The synthesized precursor polymers revealed the glass transition temperature (Tg) in the range of 254-366 °C, whereas azopolymers and supramolecular systems exhibited lower Tg within the ranges 129-153 °C and 53-171 °C, respectively. The polymers were easily soluble in common organic solvents enabling to obtain films of a good optical quality. The light-induced optical anisotropy was studied with the help of the holographic recording. The polymer films were investigated by an atomic force microscopy before and after the diffraction grating recording in order to confirm the formation of surface relief gratings. To the best of our knowledge, for the first time the photoinduced anisotropy in polyimides functionalized with azopyridine units has been compared with their supramolecular systems analoges.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 36, Issue 5, March 2014, Pages 892-902
نویسندگان
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