Conformational Parameters of Poly(N-methyl-N-vinylacetamide) Molecules Through the Hydrodynamic Characteristics Studies

被引：22

作者：

Pavlov, George M. ^{[1
,2
]}

Okatova, Olga V. ^{[2
]}

Mikhailova, Anastasia V. ^{[1
]}

Ulyanova, Natalia N. ^{[2
]}

Gavrilova, Irina I. ^{[2
]}

Panarin, Evgenii F. ^{[2
]}

机构：

[1] St Petersburg State Univ, Fock Res Inst Phys, St Petersburg 198504, Russia

[2] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia

来源：

MACROMOLECULAR BIOSCIENCE | 2010年 / 10卷 / 07期

关键词：

conformational analysis; diffusion; polyamides; viscosity; SIZE-DISTRIBUTION ANALYSIS; SEDIMENTATION COEFFICIENTS; WORMLIKE CHAINS; MACROMOLECULES; ULTRACENTRIFUGATION; DEPENDENCE; SCATTERING; POLYMERS;

D O I：

10.1002/mabi.200900475

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

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 x 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.

引用

页码：790 / 797

页数：8

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