Physico-chemical study of polymer mixtures formed by a polycation and a zwitterionic copolymer in aqueous solution and upon adsorption onto negatively charged surfaces

POLYMER

卷:217

Article

Fernandez-Pena, Laura^1,2  Guzman, Eduardo^1,3  Ortega, Francisco^1,3  Bureau, Lionel⁴  Leonforte, Fabien⁵  Velasco, Dandara⁴  Rubio, Ramon G.^1,3  Luengo, Gustavo S.⁵ 

[1] Univ Complutense Madrid, Dept Quim Fis, Fac Ciencias Quim, Ciudad Univ S-N, Madrid 28040, Spain

[2] Univ Complutense Madrid, Ctr Espectroscopia & Correlac, Ciudad Univ S-N, Madrid 28040, Spain

[3] Univ Complutense Madrid, Inst Pluridisciplinar, Paseo Juan XXIII 1, Madrid 28040, Spain

[4] Univ Grenoble Alpes, CNRS, LIPhy, F-38000 Grenoble, France

[5] LOreal Res & Innovat, F-93600 Aulnay Sous Bois, France

关键词: Polyelectrolytes;    Complexes;    Adsorption;    Solid surfaces;    Coating;    Solution characterization;    Overlapping concentration;   

DOI  :  10.1016/j.polymer.2021.123442

来源: Elsevier

【 摘 要 】

The adsorption of mixtures of charged polymers onto solid surfaces presents a big interest in different techno-logical and industrial fields, and in particular, in cosmetics. This requires to deepen on the most fundamental physico-chemical bases governing the deposition, which is generally correlated to the interactions occurring in solution. This work explores the interaction in solution of model polymer mixtures formed by a cationic ho-mopolymer (poly (diallyl-dimethyl-ammonium chloride), PDADMAC) and a zwitterionic copolymer (copolymer of acrylic acid, 3-Trimethylammonium propyl methacrylamide chloride and acrylamide, Merquat 2003), and the adsorption of such mixtures onto negatively charged surfaces. The analysis of the interactions occurring in so-lution between both polymers performed using dynamic light scattering (DLS), electrophoretic mobility and viscosity measurements, combined with the study of the deposition of the layers of mixtures containing different weight fractions of each polymer using ellipsometry and quartz crystal microbalance with dissipation monitoring (QCM-D) has shown that the interpolymer complexes formed in solution, and their composition, governs the deposition onto the solid surface and the tribological properties of the adsorbed layers as shown the Surface Force Apparatus (SFA) experiments, allowing for a control of the physico-chemical properties and structure of the layers. Furthermore, the use of Self Consistent Mean Fields Calculations (SCF) confirms the picture obtained from the experimental studies of the adsorbed layers, providing a prediction of the distribution of the polymer chains within the adsorbed layers. It is expected that this study can help on the understanding of the correlations existing between the behavior of future associations of innovative and eco-sustainable polymers and their adsorption processes onto solid surface.

【 授权许可】

Free