Note on the calculation of molecular weight averages of polymers from fractionation data
✍ Scribed by Bohdanecký, M. ;Kratochvíl, P. ;Šolc, K.
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1965
- Tongue
- English
- Weight
- 224 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0449-2951
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
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
This article presents a method that provides the molecular weight distribution (MWD) of polymeric material from rheological data. The technique has been developed to deal with linear polymers with a log-normal molecular weight distribution. The rheological data must include the shear storage modulus
On the basis of the first-order Markovian statistics, we propose a general matrix formula for the weight-average molecular weight of crosslinked polymer systems, explicitly given by M w ϭ M w,0 ϩ WX 0 (I ؊ X) Ϫ1 S f . This equation is valid for both step and chain-growth polymerizations, including t