EQUATION OF STATE FOR PERSISTENT-FLEXIBLE LIQUID-CRYSTAL POLYMERS - COMPARISON WITH POLY(GAMMA-BENZYL-L-GLUTAMATE) IN DIMETHYLFORMAMIDE
EQUATION OF STATE FOR PERSISTENT-FLEXIBLE LIQUID-CRYSTAL POLYMERS - COMPARISON WITH POLY(GAMMA-BENZYL-L-GLUTAMATE) IN DIMETHYLFORMAMIDE
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DOI：
10.1021/ma00206a043
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发表时间：
1990-02-19
期刊：
影响因子：
5.5
通讯作者：
HENTSCHKE, R
中科院分区：
文献类型：
--
作者：
HENTSCHKE, R
Khokhlov和谢梅诺夫提出了一个长链理论，它相当精确地描述了长链均匀弯曲弹性大分子稀溶液的液晶行为。在这项工作中，一个简单的修改的Khokhlov-Semenov方法被用来获得一个状态方程的持久性柔性主链聚合物，这是有效的在很宽的范围内的聚合物浓度。与实验数据的比较，二甲基甲酰胺溶液的聚（γ-苄基-L-谷氨酸酯）产生良好的协议为大的聚合物轴比，刚性粒子理论严重偏离实验结果。
Khokhlov and Semenov have proposed a theory for long persistentchains, which quite accu-rately describes the liquid-crystalline behavior of dilute solutions of long homogeneous bend-elastic mac-romolecules. In this work a simple modification of the Khokhlov-Semenov approach is used to obtain an equation of state for persistent-flexible main-chain polymers, which is valid over a wide range of polymer concentrations. Comparisons with experimental data for dimethylformamide solutions of polyiy-benzyl-L-glutamate) yield good agreement for large polymer axial ratios, where rigid particle theories deviate strongly from the experimental results.