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Effect of absorption of low‐molecular‐weight compounds by some polymer flocculants
Author(s) -
Zheltonozhskaya Tatyana B.,
Romankevich Olga O.,
Syromyatnikov Vladimir G.,
Bulavin Leonid A.,
Kudrya Vladislav Yu.,
Ogul'chansky Tymish Yu.,
Yashchuk Valeriy M.
Publication year - 1997
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19971140135
Subject(s) - polymer , absorption (acoustics) , copolymer , vinyl alcohol , polymer chemistry , sorption , molecule , flocculation , intramolecular force , dilution , materials science , nitrobenzene , phenol , chemistry , chemical engineering , organic chemistry , adsorption , catalysis , physics , engineering , composite material , thermodynamics
Abstract The sorption properties of the intramolecular complex ‐ poly(acrylamide) to poly(vinyl alcohol) grafted copolymer (PVA‐PAA N ) in block state were investigated with respect to a number of compounds. The relatively 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 ≈ 10 times) are absorbed by PVA‐PAA N very weakly. It was determined the absorption influence on the character of polymer film solution. In a number of cases the oscillation of the dilution and sorption were observed when determining the critical concentrations of guest molecules in the upper layer of polymer films were achieved. The possible mechanisms of absorption were discussed.