Collapsible gel compositions

Details Collapsible gel compositions Collapsible gel compositions

1990-01-26

1992-03-31

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524555, C08J 328

Patent

active

051009331

ABSTRACT:
Ionized crosslinked polyacrylamide gels are provided that are capable of drastic volume changes in response to minor changes in solvent concentration, temperature of pH or salt concentration of the solvent. The gels can contain a metal ion.

REFERENCES:
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patent: 3247171 (1966-04-01), Walker et al.
patent: 3993553 (1976-11-01), Assarsson et al.
patent: 4004997 (1977-01-01), Tsukamoto et al.
patent: 4172066 (1979-10-01), Zweigle et al.
Tanaka, et al., Phys. Rev. Lett., 38: 771-774 (1977).
Tanaka, T., Phys. Rev. Lett., 40(12): 820-823 (1978).

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