Viscometry is to this day an easy accessible but at the same time significant analytical method for the characterization of polymers in solution and is therefore widely used in pharmaceutical, medical and polymer processing industries as well as in research institutes and universities. By combining einsteins theory for hard spheres10 with debyes theory for free. The book can be recommended to scientists, technicians, or anyone working with polymer solutions, polyelectrolytes, and biopolymers such as hydrocolloids and proteins. Article pdf available in chinese journal of polymer science 296. Ellips4 combining electoopticviscositybased shape functions harding. The zero shear viscosity was a strong function of polyanion content, increasing significantly with polyanion content. The focus of viscosimetry of polymers and polyelectrolytes goes beyond an extended introduction by addressing experimental requirements and a comprehensive interpretation. Long been used to make jellies and jams, is a polyelectrolyte gel in cell walls of plants. Pdf analysis of viscosity abnormalities of polyelectrolytes in dilute. Determination of molecular weight of polymers by visometry. The viscometric behavior of poly 1vinyl2pyrrolidonecomaleic acid samples of different molecular mass values determined by absolute methods 1,2 was studied in dilute saltfree aqueous solutions.
Immersed in an ionic solution, a network of polyelectrolytes imbibes the. Selfassembly in mixtures of polymers and small associating molecules. Interaction of ionomers and polyelectrolytes with divalent. Data on molecular mass standard grade polymers used in this study. Rheological properties of mixtures of oppositely charged. Molecular design of lipophilic polyelectrolyte gels as superabsorbent polymers that exhibit a high degree of swelling in lesspolar and nonpolar organic solvents is demonstrated. The molecular weight of the polymer solution is very high so the viscosity of polymer solution is very high compared to that of pure solvent.
Molecular design of superabsorbent polymers for organic. Dilute solution viscometry, like rheology, has been the subject of significant. I dilute solution viscometry of food biopolymers university of. Pdf on jan 1, 2009, philip uzor and others published molecular weight determination of some natural gums by dilute solution viscometry find, read and cite all the research you need on. Viscosimetry of polymers and polyelectrolytes wernermichael. Viscosimetry of polymers and polyelectrolytes viscosity polymers. The molecular weight of the polymer is measured by using viscometer and the molecular weight obtained by this technique is called viscosity average molecular weight. Polyelectrolytes and their biological interactions core. Motion of molecular probes and viscosity scaling in polyelectrolyte.
Polyelectrolytes can be either synthetic or natural. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The terms polyelectrolyte, polymer electrolyte, and polymeric electrolyte should not be. The technique is based on the fact that dissolving a polymer in a solvent increases the viscosity of the final polymer solution.
Rheological properties of mixtures of oppositely charged polyelectrolytes. Proteins and many polysaccharides are all polyelectrolytes. Viscosimetry of polymers and polyelectrolytes researchgate. Viscosimetry of polymers and polyelectrolytes free download as pdf file.