Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Patent
1989-09-15
1991-05-21
McFarlane, Anthony
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
502407, 423341, B01J 2010
Patent
active
050175408
ABSTRACT:
The present invention produces very stable, covalently bonded separation substrates for separations application such as liquid and gas chromatography as well as capillary zone electrophoresis. An intermediate substrate is prepared which has hydride species on the substrate surface. These hydrides preferably are further derivatized by the catalytic addition of organic compounds bearing a terminal vinyl group. The final surface modification contains closely packed, direct carbon linkages that are stable.
REFERENCES:
patent: 2705222 (1955-03-01), Wagner
patent: 3839385 (1974-10-01), Meiller et al.
patent: 3950269 (1976-04-01), Setterquist
patent: 3956179 (1976-05-01), Sebestian et al.
patent: 4257916 (1981-03-01), Hancock et al.
patent: 4324873 (1982-04-01), Wada et al.
patent: 4335022 (1982-06-01), Slaugh
patent: 4467048 (1984-08-01), Johnson
patent: 4555395 (1985-11-01), Sirovich et al.
patent: 4661248 (1987-04-01), Ramsden et al.
patent: 4680201 (1987-07-01), Hjerten
patent: 4701430 (1987-10-01), Jung et al.
patent: 4705725 (1987-11-01), Glajch et al.
patent: 4746572 (1988-05-01), Glajch et al.
patent: 4904632 (1990-02-01), Pesek et al.
Deuel et al., "119. Organische Derivative des Silikagels mit Si-O-C--Bindung I", Helvetica Chimica Acta, vol. 42, No. 119, pp. 1160-1165, 1959.
Slinyakova et al., "Adsorption and Other Properties of a Hydrogen-Silica Adsorbent with Si-H Bond (Polysiloxane Hydride Xerogel)", Kolloidn. Zh., vol. 27, No. 5, pp. 758-764, 1965. (English abstract/translation provided.)
Budkevich et al., "Reduction Properties of Hydridepolysiloxane Xerogel", Kolloidn. Zh., vol. 28, No. 1, pp. 21-26. (English abstract provided).
Slinyakova et al., "An Investigation of Adsorptive Properties of Ethylphenyl and Hydridopolysiloxanes by Gas Chromatography", Ukr. Khim. Zh., vol. 33, No. 4, pp. 373-376, 1967 (English abstract provided.)
Kol'tsov et al., "The Effect of the Degree of Dehydration of Silica Gel on the Mechanism of Hydrolysis of Trichlorosilane", Russian Journal of Physical Chemistry, vol. 41, No. 3, pp. 336-337, Mar. 1967.
Morterra et al., "Reactive Silica. I. The Formation of a Reactive Silica by the Thermal Collapse of the Methoxy Groups of Methylated Aerosil", J. Phys. Chem., vol. 73, No. 2, pp. 321-326, Feb. 1969.
Morterra et al., "Reactive Silica. II. The Nature of the Surface Silicon Hydrides Produced by the Chemisorption of Hydrogen", J. Phys. Chem., vol. 73, No. 2, pp. 327-333, Feb. 1969.
Halasz et al., "New Stationary Phase for Chromatography", Angew. Chem. Internat. Edit, vol. 8, No. 6, pp. 453-454, 1969.
Budkevich et al., "Adsorption of Various Substances from Their Solutions in Hexane and Carbon Tetrachloride on Hydride-Polysiloxane Xerogel and Silica Gel", Kolloidn. Zh., vol. 32, No. 1, pp. 17-23, 1970. (English abstract.)
Budkevich et al., "Thermooxidative Degradation of Hydridopolysiloxane Xerogel", Ukr. Khim. Zh., vol. 37, No. 5, pp. 429-433, 1971. (English abstract provided.)
Kurennaya et al., "Effect of an Acid Catalyst on the Porous Structure of Polyhydrosiloxane Xerogels", Kolloidn. Zh., vol. 37, No. 1, pp. 178-181, 1975. (English abstract and translation provided.)
Asmus et al., "Preparation and Chromatographic Evaluation of Chemically Bonded Ion-Exchange Stationary Phases", Journal of Chromatography, vol. 123, pp. 109-118, 1976.
Roumeliotis et al., "Structure and Properties of n-Alkyldimethylsilyl Bonded Silica Reversed-Phase Packings", Journal of Chromatography, vol. 149, pp. 211-224, 1978.
Speier, "Homogeneous Catalysis of Hydrosilation by Transition Metals", Advances in Organometallic Chemistry, vol. 17, pp. 407-447, 1979.
Jorgenson et al., "Capillary Zone Electrophoresis", Science, vol. 222, pp. 266-272, Oct. 21, 1983.
Kirkland et al., "Liquid Phase Separation Methods: HPLC, FFFF, Electrophoresis", Chromatographia, vol. 24, pp. 58-76, 1987.
Sandoval et al., "Synthesis and Characterization of a Hydride-Modified Porous Silica Material as an Intermediate in the Preparation of Chemically Bonded Chromatographic Stationary Phases," Analytical Chemistry, vol. 61, No. 18, pp. 2067-2075, Sep. 15, 1989.
Pesek Joseph J.
Sandoval Junior E.
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