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Alkyl sulfonate modified LDH: Effect of alkyl chain length on intercalation behavior, particle morphology and thermal stability

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Abstract.
Mg–Al layered double hydroxide (LDH) was modified with straight-chain primary alkyl sulfonates by
regeneration. The effect of alkyl chain length on the intercalation behavior of LDH, particle morphology and
thermal stability of the modified LDH were investigated in detail. Irrespective of the chain length, all the alkyl sulfonate was very efficiently intercalated. The alkyl sulfonates usually form monolayers in the interlayer space, except the C18 alkyl sulfonate. The organic modification via regeneration not only changed the primary particle morphology, but at the same time size of alkyl chain significantly influenced the crystal growth during the regeneration. The intercalated alkyl sulfonates decomposed above 300 °C and the
increasing hydrocarbon chain decreased the decomposition temperature. The alkyl sulfonates stabilized the
metal hydroxide layers.

Keywords: Layered double hydroxide, Memory effect, Nanofiller

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Informasi Detail

Judul Seri

Applied Clay Science

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Applied Clay Science 44 (2009) 7–14

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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