Dynamic birefringence of amorphous polymers
Dynamic birefringence of amorphous polymers
复制标题
无定形聚合物的动态双折射
DOI：
10.1016/0022-3093(94)90586-x
复制
发表时间：
1994
影响因子：
3.5
通讯作者：
Osamu Takiguchi
中科院分区：
文献类型：
--
作者：
K. Osaki;Tadashi Inoue;E. Hwang;H. Okamoto;Osamu Takiguchi
综述了非晶态聚合物的动态双折射研究进展。振荡变形中的双折射通过橡胶流动区和终端流动区的应力光学规则(SOR)与粘弹性有关。基于应力是与各自的应力光学系数相关的两个分量的总和的假设，玻璃和玻璃到橡胶过渡区中的SOR偏差可以用修正的SOR来描述。综述了聚苯乙烯、聚(α-甲基苯乙烯)、聚(2-乙烯基萘)、聚异丁烯等14种聚合物和10种工程塑料聚合物的实验结果。讨论了各种参数的性质与分子结构的关系。
The studies on dynamic birefringence of amorphous polymers are reviewed. The birefringence in oscillatory deformation is related to the viscoelasticity through the stress-optical rule (SOR) in the rubbery and the terminal flow zones. The deviation from the SOR in the glassy and the glass-to-rubber transition zones can be described with a modified SOR, based on the assumption that the stress is a sum of two components associated with respective stress-optical coefficients. Experimental results are reviewed for 14 polymers: polystyrene, poly(α-methyl styrene), poly(2-vinyl naphthalene), polyisobutylene and 10 polymers for engineering plastics. The nature of various parameters is discussed in relation to the molecular structure.