کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1411213 | 1501851 | 2010 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photoactive liquid crystalline polyesters based on bisbenzylidene and pyridine moieties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photoactive liquid crystalline polyesters based on bisbenzylidene and pyridine moieties Photoactive liquid crystalline polyesters based on bisbenzylidene and pyridine moieties](/preview/png/1411213.png)
چکیده انگلیسی
Photoactive main chain liquid crystalline polyesters containing bis(benzylidene)acetone and aromatic heterocyclic pyridine were synthesized by solution polycondensation. Chemical structure of monomers and polymers were confirmed by FT-IR, 1H and 13C NMR spectroscopy. Thermal property was investigated by TGA and DSC. Optical property of polyesters was studied in chloroform solution and in thin film under UV irradiation and exhibited cis–trans-photoisomerization. This behavior was witnessed by solubility, carbonyl group absorption band in FT-IR, optical microscopy as well as DSC analysis through existence of liquid crystallinity after irradiation of polymers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 963, Issues 2–3, 29 January 2010, Pages 219–227
Journal: Journal of Molecular Structure - Volume 963, Issues 2–3, 29 January 2010, Pages 219–227
نویسندگان
G. Deepa, R. Balamurugan, P. Kannan,