کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5188679 | 1381164 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New hyperbranched polymers containing second-order nonlinear optical chromophores: Synthesis and nonlinear optical characterization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Three hyperbranched polymers (P1-P3) containing second-order nonlinear optical chromophores were synthesized by copolymerization of aromatic dialdehydes (carbazole, triphenylamine or benzene moieties) with sulfonyl-based chromophores attached with three active methylene groups, from “A2Â +Â B3” approach based on simple Knoevenagel reaction. For comparison, their corresponding linear analogue polymers (P4-P6) were prepared. All the polymers are soluble in common organic solvents, and exhibit good thermal stability. The tested NLO properties of the hyperbranched polymers are better than their corresponding linear polymers, due to the three-dimensional spatial separation of the chromophores in the obtained hyperbranched polymeric structures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 47, Issue 23, 30 October 2006, Pages 7881-7888
Journal: Polymer - Volume 47, Issue 23, 30 October 2006, Pages 7881-7888
نویسندگان
Zhichao Zhu, Zhong'an Li, Yong Tan, Zhen Li, Qianqian Li, Qi Zeng, Cheng Ye, Jingui Qin,