Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
Feature: Molecular Synthesis Routes towards Advanced Ceramics: Notes
Intercalation of n-alkylamines and alkylene diamines into carboxyl functionalized lamellar-type silsesquioxane
Hironori OHSHITAMachi ITONaokazu IDOTAAhmad MEHDIBruno BOURYYoshiyuki SUGAHARA
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2016 年 124 巻 10 号 p. 1090-1093

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A sol–gel-derived carboxyl-functionalized lamellar-type silsesquioxane was prepared to investigate its potential for use as a host material for intercalation reactions with n-alkylamines and alkylene diamines. Upon intercalation of n-alkylamines and alkylene diamines, the interlayer distances increased as shown by X-ray powder diffraction patterns, and IR spectra showed the presence of absorption bands attributable to ν(COO) and δ(NH3+) modes. The amounts of intercalated n-alkylamines were determined from n-CnH2n+1NH2/–COOH molar ratios which, based on CHN analysis, exhibited values from 0.76 to 0.88; whereas the values determined for the alkylene diamines were 0.83 (NH2C4H8NH2), 0.45 (NH2C8H16NH2) and 0.33 (NH2C12H24NH2). These results show that intercalation of n-alkylamines and alkylene diamines into lamellar-type silsesquioxane bearing carboxyl groups proceeded successfully via acid-base mechanisms.

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© 2016 The Ceramic Society of Japan
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