Porous rigid resins and process of preparation
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United States of America Patent
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Jun 12, 1990
Issued Date -
N/A
app pub date -
Nov 7, 1989
filing date -
Sep 26, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Porous, rigid resin particles are prepared having a predetermined particle size distribution, surface area and porosity by polymerizing in the pores of porous inorganic template particles a reaction mixture comprising monovinyl monomers, polyvinyl crosslinking monomers and a polymerization initiator in a liquid medium in which the monomers and initiator are phase separable and extractable therefrom into the pores of the template particles. The extracted mixture is polymerized in the pores of the template particles, and the template particles are removed without destruction of the polymerizate. The isolated polymerizate mirrors the characteristics of the template particles. The surface of the polymerizate may be modified in various ways to contain desired functionality. The particles of the invention are useful in chromatography, adsorption, ion exchange, and in catalysis.
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