Redox polymerization of acrylamide to high molecular weights: effect of the mineral clay montmorillonite
β Scribed by P. Bera; S. K. Saha
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 215 KB
- Volume
- 18
- Category
- Article
- ISSN
- 1022-1336
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β¦ Synopsis
Abstract
Polymerization of acrylamide with the redox couple Fe(III)/thiourea in the presence of the mineral clay montmorillonite has been investigated. Polyacrylamide is obtained in good yield having molecular weight (ca. 0.7β2.5 Γ 10^6^) approximately one order of magnitude higher than without clay. Apparently, the locus of polymerization is the interlayer space of the clay.
π SIMILAR VOLUMES
Polyelectrolyte expansion effects on high molecular weight bacteriophage DNA have bcen studied by examining the influence of simple salt concentration upon the intrinsic viscosity, [TI. The viscosity-molecular weight exponent a in the expression [q] = KM. diminishes from 0.8 in 0.005M simple salt to