Viscometric study of cellulose in PF/DMSO solution

Authors
Citation
Cj. He et Qr. Wang, Viscometric study of cellulose in PF/DMSO solution, J MACR S PU, A36(1), 1999, pp. 105-114
Citations number
12
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY
ISSN journal
1060-1325 → ACNP
Volume
A36
Issue
1
Year of publication
1999
Pages
105 - 114
Database
ISI
SICI code
1060-1325(1999)A36:1<105:VSOCIP>2.0.ZU;2-4
Abstract
Cellulose samples were found to be soluble in PF/DMSO to form a genuine dil ute solution without suffering obvious degradation under adequate condition s. The Mark-Houwink-Sakurada equation for cellulose in PF/DMSO at 30 degree s C obtained here was [eta] = 3.01 x DP0.81 where [eta] is in the unit of c m(3).g(-1). The intrinsic viscosity of cellulose in Cadoxen, FeTNa, PF/DMSO and DMAc/LiCl was in the following order: [eta](DMAc LiCl)>eta](PF/) (DMSO )>[eta](FeTNa)>[eta](Cadoxen), and the same tendency for the values of the parameter alpha. The intrinsic viscosity can be considered as an indication of the dimension of cellulose macromolecular chains in different solvent s ystems.