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Conformational Parameters of Poly( N ‐methyl‐ N ‐vinylacetamide) Molecules Through the Hydrodynamic Characteristics Studies
Author(s) -
Pavlov George M.,
Okatova Olga V.,
Mikhailova Anastasia V.,
Ulyanova Natalia N.,
Gavrilova Irina I.,
Panarin Evgenii F.
Publication year - 2010
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.200900475
Subject(s) - chemistry , sedimentation coefficient , intrinsic viscosity , polymer , molecule , molecular mass , polymer chemistry , pullulan , viscosity , hydrodynamic radius , diffusion , reduced viscosity , ether , radical polymerization , polymerization , monomer , analytical chemistry (journal) , thermodynamics , chromatography , organic chemistry , polysaccharide , copolymer , physics , enzyme
Water‐soluble PMVA was synthesized by radical polymerization methods. A number of polymer samples were fractionated in the chloroform‐diethyl ether system. Fractions were studied by molecular hydrodynamics methods (sedimentation velocity, translational isothermal diffusion and viscosity) in H 2 O and DMF. The molecular masses of fractions were determined and the Kuhn‐Mark‐Houwink‐Sakurada relationships were obtained in the molecular mass range of 3.5 < M × 10 −3 g · mol −1 <540. A negative temperature coefficient of the characteristic viscosity was obtained in both solvents. The Kuhn statistic segment length and the hydrodynamic diameter of the molecule were estimated for PMVA. The hydrodynamic volumes, occupied by the molecules of PMVA, poly(1‐vinyl‐2‐pyrrolidone), poly(vinylformamide), and pullulan were compared.