INTRINSIC-VISCOSITY AND THE MOLECULAR-WEIGHT OF KRAFT LIGNIN

Authors
DONG DJ FRICKE AL
Citation
Dj. Dong et Al. Fricke, INTRINSIC-VISCOSITY AND THE MOLECULAR-WEIGHT OF KRAFT LIGNIN, Polymer, 36(10), 1995, pp. 2075-2078
Citations number
12
Categorie Soggetti
Polymer Sciences
Journal title
Polymer → ACNP
ISSN journal
00323861
Volume
36
Issue
10
Year of publication
1995
Pages
2075 - 2078
Database
ISI
SICI code
0032-3861(1995)36:10<2075:IATMOK>2.0.ZU;2-O
Abstract
This study developed Kuhn-Mark-Houwink-Sakurada (KMHS) equations for k raft lignin, based on the absolute molecular weight characterized with low-angle laser light scattering. The KMHS exponential factors of kra ft lignin were found to be 0.11, 0.13 and 0.23 in dimethylformamide (D MF) at 318.2 K, in DMF at 350.7 K and in 0.5 N sodium hydroxide at 303 .2 K, respectively. Lignin molecules in solution are approximately sph erical particles and slightly solvated with solvent.