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Preparation of polystyrene/toluene‐2,4‐ di‐isocyanate–modified montmorillonite hybrid
Author(s) -
Chen Guangming,
Ma Yongmei,
Qi Zongneng
Publication year - 2000
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/1097-4628(20000906)77:10<2201::aid-app13>3.0.co;2-l
Subject(s) - isocyanate , montmorillonite , materials science , polystyrene , bromide , fourier transform infrared spectroscopy , toluene , polymer chemistry , bilayer , chemical engineering , polyurethane , chemistry , polymer , composite material , organic chemistry , membrane , biochemistry , engineering
A novel selective interlamellar modification of cetyltrimethylammonium bromide‐exchanged montmorillonite (MMT) by toluene‐2,4‐di‐isocyanate (TDI) has been successfully obtained, and a polystyrene/TDI‐modified MMT hybrid has been prepared. After the interlamellar modification, TDI was grafted to hydroxyl groups of the MMT, and the orientation of cetyltrimethylammonium in the interlayer space changed from a bilayer lying flat structure to a double‐layer inclined one. The structures of the TDI‐modified MMT and the hybrid were characterized by Fourier transform infrared (FTIR) spectra, powder X‐ray diffraction (XRD), and transmission electron microscopy (TEM) techniques. A schematic model of the TDI‐modified MMT structure was also presented. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 77: 2201–2205, 2000