论文标题
狭缝中限制的聚合物螺旋粒子
A polymer-tethered particle confined in a slit
论文作者
论文摘要
使用分子动力学模拟研究了在限制下毛状纳米颗粒的形状转化。我们讨论了这些颗粒在缝隙中的行为，并用惰性或有吸引力的墙壁进行讨论。我们假设只有链壁相互作用很有吸引力。显示了与墙壁相互作用的强度以及缝隙构型上缝隙的宽度的影响。在有吸引力的表面的情况下，我们发现了新结构，其中链条与它们之间的墙壁和形成桥相连：支柱，对称和不对称的线轴以及沙漏。在具有吸引人墙壁的宽毛孔中，毛茸茸的颗粒在其中一个表面上吸附，并形成“土墩”或海星状的构造。
Shape transformations of hairy nanoparticles under confinement are studied using molecular dynamic simulations. We discuss the behavior of these particles in slits with inert or attractive walls. We assume that only chain-wall interactions are attractive. The impact of the strength of interactions with the walls and the width of the slits on the particle configuration is shown. In the case of attractive surfaces, we found new structures in which the chains are connected with both walls and form bridges between them: pillars, symmetrical and asymmetrical spools, and hourglasses. In wide pores with strongly attractive walls, hairy particles adsorb on one of the surfaces and form "mounds" or starfish-like strucures.
