Viscosity Determination of Polymer Solutions
β Scribed by Young, D; McArdle, E
- Book ID
- 121863227
- Publisher
- American Chemical Society
- Year
- 1942
- Weight
- 243 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0096-4484
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π SIMILAR VOLUMES
## Abstract An empirical method for absolute molecular weight determination of polymers from viscosity measurements is described. The essential assumptions of the method are: (__a__) the Huggins' slope constant for any flexible polymer has a maximum value of 0.5 at the precipitation point; (__b__)
The diffusion of silica particles with radii ranging from 12 to 510 nm in dilute solutions of carboxymethyl cellulose (M w β«Ψβ¬ 180 to 1200 kg mol Ψ1 , c CMC β«Ψβ¬ 5 to 1000 mg l Ψ1 ) was investigated by means of dynamic light scattering at pH 5 in 0.01 mol l Ψ1 NaCl. The viscosity of the polymer solut