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Branched Dextran‐ graft ‐Polyacrylamide Copolymers as Perspective Materials for Nanotechnology
Author(s) -
Kutsevol Nataliya,
Bezugla Tetiana,
Bezuglyi Mykola,
Rawiso Michel
Publication year - 2012
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.201100087
Subject(s) - polyacrylic acid , polyacrylamide , polyelectrolyte , copolymer , dextran , polymer chemistry , macromolecule , polymer , amide , hydrolysis , materials science , flocculation , chemical engineering , chemistry , organic chemistry , biochemistry , engineering
Abstract Branched dextran‐ graft ‐polyacrylamide copolymers (D‐ g ‐PAA n ) with different number of PAA‐grafts have been synthesized for further conversion them to polyelectrolytes dextran‐ graft ‐(polyacrylamide‐co‐polyacrylic acid). It is shown that D‐ g ‐PAA n internal structure in water solution is more compact in comparison with linear polyacrylamide and depends upon the distance between PAA grafts. The branched polyelectrolytes are obtained by alkaline hydrolysis of synthesized D‐ g ‐PAA n samples. The conversion of nonionic polymers to partial anionic form depends upon the macromolecular internal structure of D‐ g ‐PAA n . The degree of transformation of amide groups to carboxylate ones is higher for branched copolymers than for linear PAA at the same condition. The synthesized branched copolymers are shown to be perspective as flocculation agents and the matrices for synthesis of the stable Ag nanosystems.