Theory of shear-thickening in transient networks of associating polymer
Theory of shear-thickening in transient networks of associating polymer
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DOI：
10.1002/marc.200500009
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发表时间：
2005-05-09
影响因子：
4.6
通讯作者：
Tanaka, F
中科院分区：
文献类型：
--
作者：
Indei, T;Koga, T;Tanaka, F
基于暂态网络模型，对遥链缔合聚合物热可逆凝胶中观察到的剪切增稠现象进行了理论研究。如果端链解离速率与中链张力的耦合常数g满足一定条件，则中链过度拉伸导致的非线性张力导致增稠。用分子参数的形式给出了增厚的条件。
Shear-thickening phenomena observed in thermo-reversible gels of telechelic associating polymers are theoretically studied on the basis of the transient network model. Non-linear tension due to over-stretching of the middle chain leads to thickening, if the coupling constant g of the end-chain dissociation rate to the middle chain tension fulfills a certain condition. We give the condition for thickening in terms of the molecular parameters.