Formation of fiber-like amorphous silica structures by externally applied shear

S V  Patwardhan; N  Mukherjee; S J  Clarson

doi:10.1023/A:1014403932692

Formation of fiber-like amorphous silica structures by externally applied shear

S V Patwardhan, N Mukherjee, S J Clarson

Chemical And Process Engineering

Research output: Contribution to journal › Article › peer-review

42 Citations (Scopus)

Abstract

The structure of amorphous silica determines its properties and governs its applications. Here we report the synthesis of elongated silica chains/rods on the nanometer size scale formed by the orientation of a growing silica sol. We have utilized a cationically charged synthetic organic polymer as a catalyst/template and perturbed the system by externally applied shear. It is proposed that the polymer orientation plays an important role in the formation of such morphologies.

Original language	English
Pages (from-to)	117-121
Number of pages	5
Journal	Journal of Inorganic and Organometallic Polymers
Volume	11
Issue number	2
DOIs	https://doi.org/10.1023/A:1014403932692
Publication status	Published - Jun 2001

Keywords

silica
sol-gel
elongated morphology
polyallylamine hydrochloride (PAH)
tetramethoxysilane (TMOS)
externally applied shear

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title = "Formation of fiber-like amorphous silica structures by externally applied shear",

abstract = "The structure of amorphous silica determines its properties and governs its applications. Here we report the synthesis of elongated silica chains/rods on the nanometer size scale formed by the orientation of a growing silica sol. We have utilized a cationically charged synthetic organic polymer as a catalyst/template and perturbed the system by externally applied shear. It is proposed that the polymer orientation plays an important role in the formation of such morphologies.",

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AU - Mukherjee, N

AU - Clarson, S J

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N2 - The structure of amorphous silica determines its properties and governs its applications. Here we report the synthesis of elongated silica chains/rods on the nanometer size scale formed by the orientation of a growing silica sol. We have utilized a cationically charged synthetic organic polymer as a catalyst/template and perturbed the system by externally applied shear. It is proposed that the polymer orientation plays an important role in the formation of such morphologies.

AB - The structure of amorphous silica determines its properties and governs its applications. Here we report the synthesis of elongated silica chains/rods on the nanometer size scale formed by the orientation of a growing silica sol. We have utilized a cationically charged synthetic organic polymer as a catalyst/template and perturbed the system by externally applied shear. It is proposed that the polymer orientation plays an important role in the formation of such morphologies.

KW - silica

KW - sol-gel

KW - elongated morphology

KW - polyallylamine hydrochloride (PAH)

KW - tetramethoxysilane (TMOS)

KW - externally applied shear

U2 - 10.1023/A:1014403932692

DO - 10.1023/A:1014403932692

M3 - Article

VL - 11

SP - 117

EP - 121

JO - Journal of Inorganic and Organometallic Polymers

JF - Journal of Inorganic and Organometallic Polymers

SN - 1053-0495

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