Remarks on the Dondos-Benoit plot of the intrinsic viscosity and its combination with the Mark-Houwink-Kuhn-Sakurada plot
✍ Scribed by Jiří Horský; Miloslav Bohdanecký
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 292 KB
- Volume
- 7
- Category
- Article
- ISSN
- 1022-1344
No coin nor oath required. For personal study only.
✦ Synopsis
The theoretical analysis of the Dondos-Benoit plot of intrinsic viscosity data and its modification by Dondos and Staikos not only reveals limitations of these methods as tools for determining the conformational characteristics of polymers but -more importantlyremoves a previously reported contradiction between experimental data and the Yamakawa-Fuji theory of the intrinsic viscosity of worm-like chains. Some years ago, Dondos and Benoit') found that the dependence of the intrinsic viscosity [q] on the molecular weight of polymers referred to as flexible can be described by an empirical equation where the parameter A' is related to long-range interactions. The parameter A 1 was found to be approximately given by where KO = lim ( [ q ] o / ~0 . 5 )
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