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Interstratified layer structure of the organo‐montmorillonites as revealed by electron microscopy
Author(s) -
Yoshida T.,
Suito E.
Publication year - 1972
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889872008908
Subject(s) - montmorillonite , lamella (surface anatomy) , adsorption , electron microscope , layer (electronics) , crystallography , lattice (music) , alkyl , chemistry , chemical physics , materials science , transmission electron microscopy , layer by layer , mineralogy , chemical engineering , composite material , optics , organic chemistry , nanotechnology , physics , engineering , acoustics
Layer structures of octadecylammonium–montmorillonite and trimethyloctadecylammonium:steramide–montmorillonite were studied by electron microscopy. Curled shapes of some lamella flakes of the organo‐montmorillonites were found. Lattice images of the layers observed at the curled edges of the flake showed regular and irregular layer expansions caused by the interlayer adsorption of the organic compounds. Some of the results exhibited local variation of the layer expansion even within one particular layer. The local variation probably originated from the intrinsic nature of the montmorillonite layer. The arrangements of the alkyl chains of the adsorbed organic compounds between the layers of montmorillonite were interpreted on the basis of interlayer distances obtained from the lattice images of the layers.