Saxena, V. P. ; Bhatnagar, H. L. ; Biswas, A. B. (1963) Viscometric determination of molecular weight of cellulose pulps in zinc ethylenediamine solution Journal of Applied Polymer Science, 7 (1). pp. 181-186. ISSN 0021-8995
Full text not available from this repository.
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/app.196...
Related URL: http://dx.doi.org/10.1002/app.1963.070070116
Abstract
A convenient method of preparing zinc ethylenediamine complex (ZED) solution for use as solvent for cellulose pulp is described, and the advantages in using this solvent (0.25M zinc in 41% ethylenediamine in water) over cupriethylenediamine (CED) or cuprammonium solutions for viscometric determination of molecular weight of cellulose are indicated. Intrinsic viscosities of eight rayon-grade pulp solutions have been determined at four temperatures: 15, 20, 25, and 30°C. The constants K = 5.85 × 10-5 and a = 0.936 of the Mark-Houwink equation [η] = KM-an, required for evaluating the molecular weight of cellulose pulps in ZED solution, have been determined by using the molecular weight values obtained from CED solutions.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| ID Code: | 81134 |
| Deposited On: | 04 Feb 2012 07:36 |
| Last Modified: | 04 Feb 2012 07:36 |
Repository Staff Only: item control page
