کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1403989 984863 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and photoresponsive behavior of azobenzene-functionalized polythiophene films
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Synthesis and photoresponsive behavior of azobenzene-functionalized polythiophene films
چکیده انگلیسی

In this paper, two kinds of azobenzene-functionalized polythiophene liquid-crystalline (LC) polymers with different spacer lengths (n = 6 and 11) were synthesized. The photochromic behaviors and photoresponsive property of these polymer films were investigated by means of spectrofluorophotometer, polarized optical microscope and ARC UV lamp. The results have shown that these liquid-crystalline polythiophene films exhibit a quite fast photochemical phase transition speed and a better opticalswitching property. Furthermore, the existence of the azobenzene moiety in the side chain has also rendered the polythiophene some interesting optical properties that can be modulated by UV light irradiation, e.g., the intensity of photoluminescent emission associated with the conjugated polythiophene main chain was found to decrease upon UV irradiation and the effect becomes more prominent when shorter spacers are used in between the azobenzene group and the main chain.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Polymer Journal - Volume 42, Issue 2, February 2006, Pages 247–253
نویسندگان
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