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A new method for estimation of viscosity-average molecular weight of polymers from GPC

✍ Scribed by Mahabadi, H. Kh.


Book ID
105335467
Publisher
Wiley (John Wiley & Sons)
Year
1984
Tongue
English
Weight
393 KB
Volume
22
Category
Article
ISSN
0098-1273

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πŸ“œ SIMILAR VOLUMES


Estimation of molecular weight averages
✍ K. K. Chee πŸ“‚ Article πŸ“… 1985 πŸ› John Wiley and Sons 🌐 English βš– 271 KB πŸ‘ 3 views

## Abstract The weight‐average molecular weight is estimated by an extrapolation technique based on a linear relation between the viscosity‐average molecular weight __M__~__v__~ and a Mark–Houwink–Sakurada constant. This method may also be used to assess the unperturbed dimensions of polymers. If t

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In the calculation of molecular weight averages by GPC, the traditional method uses the calibration curve obtained at the same concentration as the samples, which results in a large degree of disagreement between molecular weight averages at several concentrations. Because of the concentration depen

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✍ Gundiah, S. ;Kapur, S. L. πŸ“‚ Article πŸ“… 1962 πŸ› John Wiley and Sons βš– 461 KB

## 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__)