Core-Shell Microgel-Based Surface Coatings with Linear Thermoresponse

Marian Cors (1) , Oliver Wrede (2) , Anne-Caroline Genix (1) , Dario Anselmetti , Julian Oberdisse (1) , Thomas Hellweg (2)

1 L2C - Laboratoire Charles Coulomb
2 PC III - Physical and Biophysical Chemistry

We study the swelling and shrinking behavior of core-shell microgels adsorbed on silicon wafers. In these systems, the core is made of cross-linked poly(N isopropylmethacrylamide) and the shell consists of cross linked poly(N-n propylacrylamide). In suspension, these particles exhibit an extended linear swelling behavior in the temperature interval between the lower critical solution temperatures of the two polymers. Using ellipsometry and AFM, we show that this linear response is also observed in the adsorbed state.

Mots clés: Microgel synthesis; poly(NIPMAM); structural analysis; form factor; deuteration; dynamic light scattering; AFM; computer simulations

Domaines: Matière Molle [cond-mat.soft]

Marian Cors, Oliver Wrede, Anne-Caroline Genix, Dario Anselmetti, Julian Oberdisse, et al.. Core-Shell Microgel-Based Surface Coatings with Linear Thermoresponse. Langmuir, 2017, 33 (27), pp.6804-6811. ⟨10.1021/acs.langmuir.7b01199⟩. ⟨hal-01580200v2⟩