Patent
Polymers Comprising Reversible Hydrophobic Functionalities
p.13 pages
United States Patent and Trademark Office
12/01/1998
Abstract
Polymers comprising reversible hydrophobic functionalities are disclosed. The preferred embodiment polymers comprise Lewis acid segments and Lewis base segments. The polymer segments are, by themselves, hydrophilic and will either swell or dissolve in water. When the segments are incorporated into a polymer according to the present invention, the segments form water-insoluble or hydrophobic complexes. Upon changes in pH, temperature or solvent type, these complexes may dissociate, giving large transitions in polymer viscosity, emulsification ability, mechanical strength or transport properties. These polymers are useful as reversible emulsifiers which form stable emulsions at acidic pH and unstable emulsions at basic pH, as water-borne thickeners having low viscosity at low pH and high viscosity at high pH, as superabsorbing resins, or as coatings for pharmaceutical or agricultural agents.
Details
- Title: Subtitle
- Polymers Comprising Reversible Hydrophobic Functionalities
- Creators
- Alec B Scranton (Inventor) - University of Iowa, Chemical and Biochemical EngineeringArvind M. Mathur (Inventor) - Michigan State UniversityJohn Klier (Inventor)
- Contributors
- Michigan State University (Assignee)
- Resource Type
- Patent
- Publication Details
- p.13 pages
- Publisher
- United States Patent and Trademark Office; United States
- Patent
- US 5844039 A; United States Patent and Trademark Office (United States, Alexandria) - USPTO; Published; 08/910082; 08/12/1997
- Language
- English
- Date published
- 12/01/1998
- Academic Unit
- Chemical and Biochemical Engineering
- Record Identifier
- 9984221956702771
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