title: Thermoresponsive Properties of PNIPAM-Based Hydrogels: Effect of Molecular Architecture and Embedded Gold Nanoparticles.
abstract: Thermoresponsive hydrogels were successfully prepared from poly(N-isopropylacrylamide)-based polymers with different architectures (linear, branched, or hyperbranched). The macromolecular architectures strongly influence the internal structure of the hydrogels, therefore modulating their thermoresponsive and rheological properties. These hydrogels were used for the in situ synthesis of gold nanoparticles. Significant changes in hydrogel microstructures and in average pore size due to the presence of gold nanoparticles were observed. Additionally, their presence significantly increases both the mechanical strength and the toughness of the hydrogel networks.
authors.affiliation: †IMRCP, CNRS UMR 5623 and ‡CMEAB, IFR-BMT, Université de Toulouse, 31062 Toulouse Cedex 09, France.
authors.forename: Hong Hanh
authors.initials: HH
authors.lastname: Nguyen
authors.affiliation: †IMRCP, CNRS UMR 5623 and ‡CMEAB, IFR-BMT, Université de Toulouse, 31062 Toulouse Cedex 09, France.
authors.forename: Bruno
authors.initials: B
authors.lastname: Payré
authors.affiliation: †IMRCP, CNRS UMR 5623 and ‡CMEAB, IFR-BMT, Université de Toulouse, 31062 Toulouse Cedex 09, France.
authors.forename: Juliette
authors.initials: J
authors.lastname: Fitremann
authors.affiliation: †IMRCP, CNRS UMR 5623 and ‡CMEAB, IFR-BMT, Université de Toulouse, 31062 Toulouse Cedex 09, France.
authors.forename: Nancy
authors.initials: N
authors.lastname: Lauth-de Viguerie
authors.affiliation: †IMRCP, CNRS UMR 5623 and ‡CMEAB, IFR-BMT, Université de Toulouse, 31062 Toulouse Cedex 09, France.
authors.forename: Jean-Daniel
authors.initials: JD
authors.lastname: Marty
mesh_terms: D000180:Acrylic Resins / Q000138:chemical synthesis / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D020100:Hydrogels / Q000138:chemical synthesis / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D015394:Molecular Structure; D010316:Particle Size; D013499:Surface Properties; D013696:Temperature
chemical_list: D000180:Acrylic Resins; D020100:Hydrogels; C052970:poly-N-isopropylacrylamide; D006046:Gold