Self-assembly of amphiphilic patchy particles with different cross-linking densities
Self-assembly of amphiphilic patchy particles with different cross-linking densities
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DOI：
10.1039/c2sm25078k
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发表时间：
2012-06
期刊：
影响因子：
3.4
通讯作者：
Jing Zhang;Zhong-yuan Lu;Zhao-Yan Sun
中科院分区：
文献类型：
--
作者：
Jing Zhang;Zhong-yuan Lu;Zhao-Yan Sun
通过计算机模拟研究了两片颗粒的变形能力对其自组装行为的影响。片状颗粒的柔软度和可变形性可以通过改变颗粒不同部分的交联密度来控制。当交联密度较低时，对补片不利但对基体有利的溶剂中的片状颗粒形成线性线状结构，而在交联密度相对较高时形成三维网络结构。对于在对斑块有利但对基质不利的溶剂中的斑块颗粒，在相对低的交联密度下获得互连的膜结构，并且当交联密度高时出现一些簇结构。通过调节斑片颗粒不同部分的交联密度，可以观察到具有更好形态的双连续膜。
The influence of deformability of two-patch particles on their self-assembly behavior is studied via computer simulations. The softness and the deformability of the patchy particles can be controlled by varying the cross-linking densities in different parts of the particles. The patchy particles in a solvent that is bad for patches but good for the matrix form linear thread-like structures when cross-linking densities are low, whereas they form three-dimensional network structures at relatively high cross-linking densities. For patchy particles in a solvent that is good for patches but bad for the matrix, inter-connected membrane structures are obtained at relatively low cross-linking densities, and some cluster structures emerge when cross-linking densities are high. Bicontinuous membranes with better morphologies can be observed by tuning the cross-linking densities of different parts of the patchy particles.