Cross-linking of polybutadiene at the air/water interface: toward an easy access to two-dimensional polymeric materials.
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.
Matmour
Rachid
R
Center for Macromolecular Science and Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, FL 32611-7200, USA.
Joncheray
Thomas J
TJ
Gnanou
Yves
Y
Duran
Randolph S
RS
D000388:Air; D002070:Butadienes / Q000737:chemistry*; D003432:Cross-Linking Reagents / Q000737:chemistry*; D020724:Elastomers / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D006868:Hydrolysis; D015394:Molecular Structure; D011108:Polymers / Q000737:chemistry*; D012821:Silanes / Q000737:chemistry*; D013499:Surface Properties; D014867:Water / Q000737:chemistry
D002070:Butadienes; D003432:Cross-Linking Reagents; D020724:Elastomers; D011108:Polymers; D012821:Silanes; D014867:Water; C522569:triethoxysilane; C028834:polybutadiene