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arXiv 1806.02504cond-mat.soft
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纳米粒子间引力对蠕虫状胶束-纳米粒子体系的影响

Effect of the strength of attraction between nanoparticles on Wormlike micelle-nanoparticle system

Sk. Mubeena

摘要:

纳米粒子-平衡聚合物(或蠕虫状胶束)系统显示出从分散的网络状结构到非分散的簇的形态变化,其中纳米粒子与平衡聚合物基质之间的最小接近距离(EVP排除体积参数)发生变化。纳米粒子团簇的形状各向异性可以通过改变聚合物密度来控制。本文研究了纳米粒子在平衡聚合物基体(或蠕虫状胶束基体)中的协同自组装,考察了纳米粒子间吸引力的变化。作为一个结果的吸引力的纳米粒子相互作用的强度降低的系统的形态转换到较低的EVP值的点的移位被报道。我们表明,纳米粒子之间的吸引力的相互作用的情况下,导致低包装的纳米粒子结构,但不改变系统的形态学行为。我们还报告了形成的系统跨越片状排列的纳米粒子,这些纳米粒子排列在交替层的基体聚合物和纳米粒子。

英文摘要:

The nanoparticle-Equilibrium polymer (or Wormlike micellar) system shows morphological changes from percolating network-like structures to non-percolating clusters with a change in the minimum approaching distance (EVP-excluded volume parameter) between nanoparticles and the matrix of equilibrium polymers. The shape anisotropy of nanoparticle clusters can be controlled by changing the polymer density. In this paper, the synergistic self-assembly of nanoparticles inside equilibrium polymeric matrix (or Wormlike micellar matrix) is investigated with respect to the change in the strength of attractive interaction between nanoparticles. A shift in the point of morphological transformation of the system to lower values of EVP as a result of a decrease in the strength of the attractive nanoparticle interaction is reported. We show that the absence of the attractive interaction between nanoparticles leads to the low packing of nanoparticle structures, but does not change the morphological behaviour of the system. We also report the formation of the system spanning sheet-like arrangement of nanoparticles which are arranged in alternate layers of matrix polymers and nanoparticles.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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