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Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers
Published on: June 30, 2018
Cross-linking of polybutadiene at the air/water interface: toward an easy access to two-dimensional polymeric
Rachid Matmour1, Thomas J Joncheray, Yves Gnanou
1Center for Macromolecular Science and Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200, USA.
Abstract:
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.
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