On-line study of polyelectrolyte network formation by interfacial reaction

A modified synthetic boundary expt. of anal. ultracentrifugation has been employed to examine, online, polyelectrolyte complex formation at flat interfaces yielding highly swollen membranes/networks. Systematic expts. with sodium alginate as a polyanion and chitosan and poly(L-lysine) as polycations identified the influence of concn., pH, molar mass, and polycation type on the membrane characteristics and the formation process. The membranes have been evaluated by five characteristics defined herein: total thickness, compactness, heterogeneity, symmetry, and growth. The results confirm the sensitivity of the method suited to elaborate general relationships for polyelectrolyte membrane design. [on SciFinder (R)]


Published in:
Colloid and Polymer Science, 282, 11, 1247-1257
Year:
2004
Other identifiers:
Laboratories:




 Record created 2006-02-27, last modified 2018-03-17


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)