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2009•Acta Mineralogica SinicaRequires access

STUDY ON THE MODIFICATION OF XINJIANG VERMICULITE BY PILLARING A SERIES OF QUATERNARY AMMONIUM

H.J. Sun

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Abstract

Vermiculite from Weili,Xinjiang,was modified by sodium and intercalated by N-trimethylammonium bromide(CnTAB).The arrangement modeling patterns of CnTA+ in organic pillared vermiculite were studied by XRD and geometry size.The results revealed the different evolution routes about the arrangement model of organic cations in the vermiculite layer.The factors that affect the arrangement model of organic cations in vermiculite layer are the dosage of quaternary ammonium and the character of quaternary ammonium.It is lateral with little ammonium.It is of paraffin type with mass ammonium.The paraffin-type forms easily,as the chains become longer.

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What this paper is about

Vermiculite from Weili,Xinjiang,was modified by sodium and intercalated by N-trimethylammonium bromide(CnTAB).The arrangement modeling patterns of CnTA+ in organic pillared vermiculite were studied by XRD and geometry size.The results revealed the different evolution routes about the arrangement model of organic cations in the vermiculite layer.The factors that affect the arrangement model of organic cations in vermiculite layer are the dosage of quaternary ammonium and the character of quaternary ammonium.It is lateral with little ammonium.It is of paraffin type with mass ammonium.The paraffin-type forms easily,as the chains become longer.

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Available abstract

Vermiculite from Weili,Xinjiang,was modified by sodium and intercalated by N-trimethylammonium bromide(CnTAB).The arrangement modeling patterns of CnTA+ in organic pillared vermiculite were studied by XRD and geometry size.The results revealed the different evolution routes about the arrangement model of organic cations in the vermiculite layer.The factors that affect the arrangement model of organic cations in vermiculite layer are the dosage of quaternary ammonium and the character of quaternary ammonium.It is lateral with little ammonium.It is of paraffin type with mass ammonium.The paraffin-type forms easily,as the chains become longer.

Key concepts: Vermiculite, Ammonium, Ammonium bromide, Quaternary, Chemistry, Sodium, Inorganic chemistry, Materials science

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