Intramolecular Polycomplexes Formed by Dextran‐Grafted Polyacrylamide: Effect of the Components Molecular Weight

Kutsevol, N.; Guenet, Jean‐Michel; Melnik, Nataliya; Rossi, Claudio

doi:10.1002/masy.200550428

Cited by 2 publications

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“…FT-IR and 1 H NMR spectroscopy confirmed that we are dealing with graft copolymers [4] . One narrow peak on the SEC chromatograms testify that the product of grafting process is only graft copolymer.…”

Section: Resultssupporting

confidence: 60%

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Water Soluble Dextran‐Polyacrylamide Graft Copolymers for Capturing Metal Ions

Kutsevol

Guenet

Melnyk

et al. 2006

Macromolecular Symposia

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The graft copolymers of Polyacrylamide (PAA) to Dextran (M w ¼ 20000 and M w ¼ 70000) have been synthesised by ceric-ion-reduced redox initiation method. Molecular characteristic of graft copolymers were determined from light scattering, SEC, and viscometry data. It was established that the increase of molecular weight of Dextran component up to 3.5 times do not influence essentially organization at molecular level of these copolymers in aqueous solution. Thet D-g-PAA copolymers capable of binding the heavy metal ions.

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Section: Resultssupporting

confidence: 60%

“…Dextran-graft Polyacrylamide (D-g-PAA) copolymers were synthesized by ceric-ionreduced redox initiation method [4] . Dextran (Leuconostoc) with M w ¼ 20 000 (D20) and M w ¼ 70 000 (D70) (Serva, Sweden), acrylamide (AA) (Reanal, Hungary) and ammonium cerium (IV) nitrate (Aldrich, USA) were used.…”

Section: Experimental Materialsmentioning

confidence: 99%

Water Soluble Dextran‐Polyacrylamide Graft Copolymers for Capturing Metal Ions

Kutsevol

Guenet

Melnyk

et al. 2006

Macromolecular Symposia

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Flocculation Behaviour of Polymer Brushes of Various Nanostructure

Kutsevol

Soushko

Shyichuk

et al. 2008

Molecular Crystals and Liquid Crystals

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Dextran-graft-polyacrylamide copolymers with different backbone lengths and graft numbers have been tested as flocculation aids in model kaolin suspensions. According to the sedimentation rate and the final sediment volume the graft copolymers proved to be rather similar to the linear acrylamide homopolymer having similar molecular weight. According to the supernatant liquid clarity the copolymers are more effective flocculants than the linear polyacrylamide. The supernatant clarity is inversely related to the length of backbone between the grafts. Apparently, conformation of grafted chain is somewhat more expanded in the cases where the grafts are closely disposed. Due to an expanded macromolecular conformation the functional groups of these copolymers are more capable of capturing solid particles than those of linear acrylamide polymers.

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Intramolecular Polycomplexes Formed by Dextran‐Grafted Polyacrylamide: Effect of the Components Molecular Weight

Abstract: Graft copolymers of Polyacrylamide‐g‐Dextran were synthesized using ceric‐ion‐initiated solution polymerisation technique. It is shown that the macromolecular parameters of these copolymers and their molecular structure strongly depend on the molecular weight of the Dextran part.

Cited by 2 publications

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Water Soluble Dextran‐Polyacrylamide Graft Copolymers for Capturing Metal Ions

Water Soluble Dextran‐Polyacrylamide Graft Copolymers for Capturing Metal Ions

Flocculation Behaviour of Polymer Brushes of Various Nanostructure

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