Pore-size-distribution of cationic polyacrylamide hydrogels
The pore size distribution of a AAm/MAPTAC (acrylamide copolymerized with (3-methacrylamidopropyl)trimethylammonium chloride) hydrogel was investigated using Kuga's mixed-solute-exclusion method, taking into account the wall effect. A Brownian-motion model is also used. Results show the feasibility of determining pore-size distribution of porous materials using the mixed-solute-exclusion method in conjunction with solution of the Fredholm equation; good agreement was obtained with experiment, even for bimodal pore structures. However, different pore size distributions were calculated for the two different probe-solutes (Dextran and poly(ethylene glycol/oxide)). Future work is outlined. 32 figs, 25 refs.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6395469
- Report Number(s):
- LBL-32845; ON: DE93015218
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
GELS
POROSITY
HYDROPHYLIC POLYMERS
MEASURING METHODS
ACRYLAMIDE
COPOLYMERS
CROSS-LINKING
POLYAMIDES
PROBES
PROGRESS REPORT
QUATERNARY COMPOUNDS
SOLID ELECTROLYTES
SOLUTES
AMIDES
AMINES
AMMONIUM COMPOUNDS
CHEMICAL REACTIONS
COLLOIDS
DISPERSIONS
DOCUMENT TYPES
ELECTROLYTES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERIZATION
POLYMERS
400201* - Chemical & Physicochemical Properties
360602 - Other Materials- Structure & Phase Studies