Effect of Thermo- and pH-sensitive Block Copolymer Structure and Composition on the Synthesis and Stabilization of Gold Nanoparticles

Chemphyschem. 2024 Apr 3:e202400194. doi: 10.1002/cphc.202400194. Online ahead of print.ABSTRACTHomopolymers of poly[N-(2-(diethylamino)ethyl) acrylamide] exhibit the ability to adsorb onto the surface of preformed or growing gold nanoparticles. The resulting hybrid materials possess a pH and thermo-sensitive nature. Consequently, their optical properties can be modulated by manipulating either the temperature or the pH. Moreover, introducing monomers based on poly(N-isopropyl acrylamide) into block or random statistical polymers enables further modulation of the thermosensitive properties. These copolymers, employed for the in-situ synthesis and/or stabilization of gold nanoparticles, lead to hybrid materials whose properties and/or particle size depend on the polymer composition and microstructure: statistical polymers emerge as superior stabilizing agents compared to their block counterparts at a constant composition.PMID:38567979 | DOI:10.1002/cphc.202400194
Source: Chemphyschem - Category: Chemistry Authors: Source Type: research