Colloidal clusters of silica or polymer microspheres

Gi Ra Yi; Vinothan N. Manoharan; Eric Michel; Mark T. Elsesser; Seung Man Yang; David J. Pine

doi:10.1002/adma.200306638

Colloidal clusters of silica or polymer microspheres

Gi Ra Yi, Vinothan N. Manoharan, Eric Michel, Mark T. Elsesser, Seung Man Yang, David J. Pine

Chemical and Biomolecular Engineering

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

Abstract

The cluster formation process using two different kinds of sterically stabilized colloidal particles was studied. The first consisted of silica microspheres with octadecyl(c₁₈) chains grafted to their surfaces and the second consisted of non-crosslinked polymethyl methacrylates (PMMA) microspheres. The clusters were stable in water due to reason that the P123 triblock copolymer surfactant that stabilized the hexane-water interfaces adsorbs onto the colloidal clusters and thus prevented cluster-cluster aggregation. The results show that the ultimate cluster configurations are nearly identical for the various systems.

Original language	English (US)
Pages (from-to)	1204-1208
Number of pages	5
Journal	Advanced Materials
Volume	16
Issue number	14
DOIs	https://doi.org/10.1002/adma.200306638
State	Published - Jul 19 2004

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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title = "Colloidal clusters of silica or polymer microspheres",

abstract = "The cluster formation process using two different kinds of sterically stabilized colloidal particles was studied. The first consisted of silica microspheres with octadecyl(c18) chains grafted to their surfaces and the second consisted of non-crosslinked polymethyl methacrylates (PMMA) microspheres. The clusters were stable in water due to reason that the P123 triblock copolymer surfactant that stabilized the hexane-water interfaces adsorbs onto the colloidal clusters and thus prevented cluster-cluster aggregation. The results show that the ultimate cluster configurations are nearly identical for the various systems.",

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AU - Yi, Gi Ra

AU - Manoharan, Vinothan N.

AU - Michel, Eric

AU - Elsesser, Mark T.

AU - Yang, Seung Man

AU - Pine, David J.

PY - 2004/7/19

Y1 - 2004/7/19

N2 - The cluster formation process using two different kinds of sterically stabilized colloidal particles was studied. The first consisted of silica microspheres with octadecyl(c18) chains grafted to their surfaces and the second consisted of non-crosslinked polymethyl methacrylates (PMMA) microspheres. The clusters were stable in water due to reason that the P123 triblock copolymer surfactant that stabilized the hexane-water interfaces adsorbs onto the colloidal clusters and thus prevented cluster-cluster aggregation. The results show that the ultimate cluster configurations are nearly identical for the various systems.

AB - The cluster formation process using two different kinds of sterically stabilized colloidal particles was studied. The first consisted of silica microspheres with octadecyl(c18) chains grafted to their surfaces and the second consisted of non-crosslinked polymethyl methacrylates (PMMA) microspheres. The clusters were stable in water due to reason that the P123 triblock copolymer surfactant that stabilized the hexane-water interfaces adsorbs onto the colloidal clusters and thus prevented cluster-cluster aggregation. The results show that the ultimate cluster configurations are nearly identical for the various systems.

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