Pore-size-distribution of cationic polyacrylamide hydrogels. Progress report

Technical Report · Mon Jun 01 00:00:00 EDT 1992

DOI:https://doi.org/10.2172/10160584· OSTI ID:10160584

Kremer, M; Prausnitz, J M

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, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 10160584
• Report Number(s): LBL-32845; ON: DE93015218
• Resource Relation: Other Information: PBD: Jun 1992
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
GELS
POROSITY
HYDROPHYLIC POLYMERS
MEASURING METHODS
PROGRESS REPORT
SOLID ELECTROLYTES
COPOLYMERS
POLYAMIDES
ACRYLAMIDE
QUATERNARY COMPOUNDS
CROSS-LINKING
PROBES
SOLUTES
400201
360602
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
STRUCTURE AND PHASE STUDIES