Coating of uniform inorganic particles with polymers, I

Journal Article · Fri Oct 15 00:00:00 EDT 1993 · Journal of Colloid and Interface Science; (United States)

DOI:https://doi.org/10.1006/jcis.1993.1400· OSTI ID:5850829

Oyama, H T; Sprycha, R; Xie, Yuming; Partch, R E; Matijevic, E ^[1]

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1. Clarkson Univ., Potsdam, NY (United States). Center for Advanced Materials Processing

Uniform spherical silica particles have been first coated with aluminum hydrous oxide and then with poly(divinylbenzene). To produce the outer shell, the inorganic cores were pretreated with a vinyl coupling agent, then divinylbenzene, and an initiator in hot mineral spirits. The thickness of the alumina or polymer layers could be controlled by adjusting the experimental parameters. The same procedure was used to coat irregularly shaped commercial alumina particles. The charge of the so prepared particles was determined by potentiometric titrations, which showed that the polymer coating was permeable to the reactants. Thus, the titration curves were determined by the properties of the cores.

• OSTI ID: 5850829
• Journal Information: Journal of Colloid and Interface Science; (United States), Vol. 160:2; ISSN 0021-9797
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
PROTECTIVE COATINGS
POLYMERS
SURFACE COATING
SILICA
THICKNESS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
COATINGS
DEPOSITION
DIMENSIONS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES
360601* - Other Materials- Preparation & Manufacture