Ushakova Aleksandra S, Vasilevskaya Valentina V
A.N. Nesmeyanov Institute of Organoelement Compounds RAS, Vavilova St. 28, 119991 Moscow, Russia.
Chemistry Department, M. V. Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia.
Polymers (Basel). 2022 Oct 16;14(20):4358. doi: 10.3390/polym14204358.
An analytical theory describing the variety of different morphological structures that spontaneously self-assemble in layers of amphiphilic homopolymers tightly grafted to spherical nanoparticle is proposed. For this purpose, the following structures were identified and outlined: hedgehogs, in which macromolecules are combined into cylindrical aggregates; chamomile, when cylindrical aggregates are connected by their ends into loops; multipetal structure with macromolecules self-assembling into thin lamellae; and unstructured, swollen and uniformly compacted shells. The results are presented in the form of state diagrams and serve as a basis for the directional design of the surface pattern by varying system parameters (particle radius, grafting density and degree of polymerization) and solvent properties (quality and selectivity).
提出了一种分析理论，用于描述紧密接枝到球形纳米颗粒上的两亲性均聚物层中自发自组装形成的各种不同形态结构。为此，识别并概述了以下结构：刺猬状结构，其中大分子组合成圆柱形聚集体；洋甘菊状结构，即圆柱形聚集体通过端部连接成环；大分子自组装成薄片的多花瓣结构；以及无结构、肿胀且均匀压实的壳层。结果以状态图的形式呈现，并作为通过改变系统参数（颗粒半径、接枝密度和聚合度）和溶剂性质（质量和选择性）来定向设计表面图案的基础。
