Regio-Selective Mechanical Enhancement of Polymer-Grafted Nanoparticle Composites via Light-Mediated Crosslinking.

ABSTRACT: Polymer-brush-grafted nanoparticles (PGNPs) that can be covalently crosslinked post-processing enable the fabrication of mechanically robust and chemically stable polymer nanocomposites with high inorganic filler content. Modifying PGNP brushes to append UV-activated crosslinkers along the polymer chains would permit a modular crosslinking strategy applicable to a diverse range of nanocomposite compositions. Further, light-activated crosslinking reactions enable spatial control of crosslink density to program intentionally inhomogeneous mechanical responses. Here, a method of synthesizing composites using UV-crosslinkable brush-coated nanoparticles (referred to as UV-XNPs) is introduced that can be applied to various monomer compositions by incorporating photoinitiators into the polymer br

SUBMITTER: Kim K 

PROVIDER: S-EPMC11899498 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature