Molecular dynamics simulations of photo-induced deformations in azobenzene-containing polymers

被引：0
|
作者：
Ilnytskyi, Jaroslav M. [1 ,2 ]
Neher, Dieter [1 ]
Saphiannikova, Marina [3 ]
机构：
[1] Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany
[2] Natl Acad Sci Ukraine, Inst Cond Mat Phys, Lvov, Ukraine
[3] Leibniz Inst Polymer Res Dresden, Dresden, Germany
来源：
MODELING AND SIMULATION OF NEW MATERIALS | 2009年 / 1091卷
关键词：
azobenzene polymers; photo-induced deformations; molecular dynamics; FLEXIBLE LIQUID-CRYSTAL; GRATINGS; FILMS; PROGRAM; SITES; MODEL;
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
The experimental studies indicate that the scenario for photo-induced deformation in azobenzene-containing polymers (azo-polymers) is different in liquid crystalline (LC) and amorphous systems. The exact microscopic origin of these differences is not yet clear. We performed molecular dynamics (MD) simulations of the two models related to these two types of polymers. The only effect of the illumination being considered is the reorientation of trans-isomers perpendicularly to the light polarisation. The deformations of an opposite sign are observed in two models being considered and relevant microscopic mechanism are clarified in both cases.
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页码：253 / +
页数：2
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