Cross-linking of polybutadiene at the air/water interface: Toward an easy access to two-dimensional polymeric materials

Rachid Matmour (1) , Thomas J. Joncheray (2) , Yves Gnanou (1, 3) , Randolph S. Duran (2)

1 LCPO - Laboratoire de Chimie des polymères organiques
2 Department of Chemistry and Center for Macromolecular Science and Engineering
3 Team 1 LCPO : Polymerization Catalyses & Engineering

A novel approach to two-dimensionally crosslink polydienes at the air/water interface is proposed. The acid-catalyzed condensation of the triethoxysilane pendant groups of triethoxysilane-functionalized polybutadiene chains at the air/water interface successfully led to the formation of an insoluble crosslinked material which could be directly removed from the water surface. The efficiency of the cross-linking reaction was demonstrated through surface pressure measurements such as surface pressure-mean molecular area isotherms recorded at different reaction times and isobar experiments for different subphase pH values. The evolution of the monolayer topography during cross-linking was studied by atomic force microscopy imaging of the Langmuir-Blodgett films. (C) 2007 Elsevier Inc. All rights reserved

Mots clés: polybutadiene; two-dimensional cross-linking; air/water interface; Langmuir-Blodgett films; triethoxysilane

Domaines: Polymères

Rachid Matmour, Thomas J. Joncheray, Yves Gnanou, Randolph S. Duran. Cross-linking of polybutadiene at the air/water interface: Toward an easy access to two-dimensional polymeric materials. Journal of Colloid and Interface Science, 2007, 311 (1), pp.315-321. ⟨10.1016/j.jcis.2007.02.065⟩. ⟨hal-00275932⟩