Preparation of crosslinked cyclodextrin resins with enhanced por

Details Preparation of crosslinked cyclodextrin resins with enhanced por Preparation of crosslinked cyclodextrin resins with enhanced por

1988-09-30

1990-09-18

Griffin, Ronald W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536106, 536110, 536124, 527300, 527311, C08B 3702

Patent

active

049580159

ABSTRACT:
Resins resulting from the crosslinking of cyclodextrin with dicarboxylic acid dihalides often show marginal binding capacity for guest molecules and poor kinetics of guest molecule removal because of the limited porosity of the resins. Resins whose apparent bulk density has been reduced by at least 20% show an enhancement in both of the aforementioned properties resulting from an increase in porosity of the resins. Such resins in general can be formed by conducting the crosslinking reaction in the presence of a blowing agent. The resulting materials retained their desirable physical properties for use in a fixed or packed bed.

REFERENCES:
patent: 3472835 (1969-10-01), Buckler et al.
patent: 4902788 (1990-02-01), Zemel et al.
J. Szejtli, Starch, 34, 379-385 (1982).
R. D. Yang and A. E. Humphrey, Biotech. Bioeng., 17, 1211-1235 (1957).

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