Préparation d’un Nouveau Composite à Base du Copolymères Dérivés du Poly (4-vinylpyridine) et la Bentonite

Abstract

The composite was prepared by introduction of poly (4 -vinylpyridine - octyl bromide) [P4VP - C8Br - X] different percentages quaternization(20% et 50%) into bentonite treaty by sulfuric acid H2SO4 concentrated for obtained [bentonite/ poly (4 -vinylpyridine - octyl bromide)]. thermogravimetric analysis (TGA ) shows a good stability of both types of materials at high temperatures. Fourier transform infrared ( FTIR ) analysis and X-ray diffraction (DRX ) analysis shows clearly that is the copolymer actually adsorbed on bentonite , [P4VP - C8Br -X]. Therefore, the organic modified clay leads to a hydrophobic modification of properties of these composite materials [P4VP - C8Br -X]. After that the composite is modified again by di-bromo alkyl and characterized.