Effect of Thermo‐ and pH‐Sensitive Block Copolymer Structure and Composition on the Synthesis and Stabilization of Gold Nanoparticles - Archive ouverte HAL
Article Dans Une Revue ChemPhysChem Année : 2024

Effect of Thermo‐ and pH‐Sensitive Block Copolymer Structure and Composition on the Synthesis and Stabilization of Gold Nanoparticles

Résumé

Abstract Homopolymers 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.

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Chimie

Dates et versions

hal-04590720 , version 1 (28-05-2024)

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Fang Yin, Yuezhan Wan, Diana Ciuculescu-Pradines, Nancy Lauth-de Viguerie, Jean‐daniel Marty. Effect of Thermo‐ and pH‐Sensitive Block Copolymer Structure and Composition on the Synthesis and Stabilization of Gold Nanoparticles. ChemPhysChem, 2024, ⟨10.1002/cphc.202400194⟩. ⟨hal-04590720⟩
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