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聚合物接枝纳米颗粒(Polymer grafted nanoparticles,PGNPs)是一类重要的聚合物改性填料。由于表面聚合物链的存在,在一定条件下,PGNPs可以均匀地分散在聚合物基体中,形成“完全相容性”聚合物纳米复合材料。近年来,PGNPs填充聚合物体系的结构-性能关系研究已成为高分子学科的研究热点。本文主要概述了PGNPs的制备及其填充聚合物体系的结构-性能关系。从PGNPs的设计制备、PGNPs在聚合物基体中的分散行为、PGNPs纳米复合体系流变行为和纳米复合材料力学性能4个方面介绍了该领域已经取得的研究进展和现状,并展望该领域今后的发展前景和研究方向。
Polymer grafted nanoparticles (PGNPs) are an important class of polymer-modified fillers. Due to the presence of polymer chains on the surface, under certain conditions, PGNPs can be uniformly dispersed in the polymer matrix to form a “fully compatible” polymer nanocomposite. In recent years, the structure-property relationship of PGNPs filled polymer systems has become a hot research topic in polymer science. This article summarizes the preparation of PGNPs and the structure-property relationship of their filled polymer systems. The progresses and current status of the research in this area are introduced from four aspects of the design and preparation of PGNPs, the dispersion behavior of PGNPs in polymer matrix, the rheological behavior of PGNPs nanocomposites and the mechanical properties of nanocomposites. Development prospects and research directions.