INTERNAL SURFACE, ORIENTATIONAL ORDER, AND DISTRIBUTION OF A POLYMER NETWORK IN A LIQUID-CRYSTAL MATRIX

被引：35

作者：

CRAWFORD, GP ^{[1
]}

SCHARKOWSKI, A ^{[1
]}

FUNG, YK ^{[1
]}

DOANE, JW ^{[1
]}

ZUMER, S ^{[1
]}

机构：

[1] UNIV LJUBLJANA, DEPT PHYS, LJUBLJANA 61000, SLOVENIA

来源：

PHYSICAL REVIEW E | 1995年 / 52卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.52.R1273

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Optical birefringence of the liquid crystal induced in its isotropic phase by low concentration polymer networks (1-4% by weight) is used to estimate the internal surface area of the network and its order parameter. The results show conclusively that the polymer networks are finely distributed down to the nanometer scale with the orientational order parameter being an order of magnitude smaller than that of the nematic medium where they are formed. A model structure is presented where molecular fibrils form bundles (relatively rich in polymer) which are responsible for the observed inhomogeneities on the submicrometer scale.

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收藏

页码：R1273 / R1276

页数：4

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