HYDRODYNAMIC PROPERTIES OF HYDROXYPROPYL CELLULOSE IN WATER AND ETHANOL

Citation
In. Shtennikova et al., HYDRODYNAMIC PROPERTIES OF HYDROXYPROPYL CELLULOSE IN WATER AND ETHANOL, Vysokomolekularnye soedinenia. Seria A, 37(8), 1995, pp. 1368-1372
Citations number
29
Categorie Soggetti
Polymer Sciences
ISSN journal
05075475
Volume
37
Issue
8
Year of publication
1995
Pages
1368 - 1372
Database
ISI
SICI code
0507-5475(1995)37:8<1368:HPOHCI>2.0.ZU;2-P
Abstract
The molecular masses and intrinsic viscosities of various samples and fractions of hydroxypropyl cellulose (HPC) with the average molar degr ee of substitution 3.35 +/- 0.35 were determined in water and ethanol, and relations between these characteristics were established, The the ory of the hydrodynamic properties of wormlike chains is used to estim ate the equilibrium rigidity and hydrodynamic cross-section diameter o f HPC macromolecules in water and ethanol. A comparative analysis of t he hydrodynamic properties and conformation parameters of HPC molecule s in aqueous and organic solvents is given.