EFFECT OF ABSORPTION OF LOW-MOLECULAR-WEIGHT COMPOUNDS BY SOME POLYMER FLOCCULANTS

Authors
ZHELTONOZHSKAYA TB ROMANKEVICH OO SYROMYATNIKOV VG BULAVIN LA KUDRYA VY OGULCHANSKY TY YASHCHUK VM
Citation
Tb. Zheltonozhskaya et al., EFFECT OF ABSORPTION OF LOW-MOLECULAR-WEIGHT COMPOUNDS BY SOME POLYMER FLOCCULANTS, Macromolecular symposia, 114, 1997, pp. 263-269
Citations number
7
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecular symposia → ACNP
ISSN journal
10221360
Volume
114
Year of publication
1997
Pages
263 - 269
Database
ISI
SICI code
1022-1360(1997)114:<263:EOAOLC>2.0.ZU;2-4
Abstract
The sorption properties of the intramolecular complex - poly(acrylamid e) to poly(vinyl alcohol) grafted copolymer (PVA-PAA(N)) in block stat e were investigated with respect to a number of compounds. The relativ ely small molecules of phenol, phenylalanine in water solution as well as nitrobenzene in hexane are strongly absorbed by PVA-PAA(N) films. The large humine acid molecules (sizes are larger by more than approxi mate to 10 times) are absorbed by PVA-PAA(N) very weakly. It was deter mined the absorption influence on the character of polymer film soluti on. In a number of cases the oscillation of the dilution and sorption were observed when determining the critical concentrations of guest mo lecules in the upper layer of polymer films were achieved. The possibl e mechanisms of absorption were discussed.