Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Molecular characteristics of poly(1-trimethylsilyl-1-propyne) in dilute solutions. / Pavlov, G. M.; Zaitseva, I. I.; Michailova, N. A.; Rjumtsev, E. I.
в: Polymer, Том 45, № 4, 02.2004, стр. 1159-1166.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Molecular characteristics of poly(1-trimethylsilyl-1-propyne) in dilute solutions
AU - Pavlov, G. M.
AU - Zaitseva, I. I.
AU - Michailova, N. A.
AU - Rjumtsev, E. I.
N1 - Funding Information: The authors would like to thank V. S. Khotimsky for generous providing of the PTMSP samples. Financial support provided by INTAS (N 2000-00230) and by Grant Centre of the Education Ministry of Russian Federation (N E02-3.4-315) are gratefully acknowledged.
PY - 2004/2
Y1 - 2004/2
N2 - Samples and fractions of a membrane-forming polymer, poly(1-trimethylsilyl- 1-propyne) (PTMSP), were studied by methods of molecular hydrodynamics (velocity sedimentation, translational isothermal diffusion and viscometry) in cyclohexane in the molecular mass range 60<M×10-3gmol -1<430. The following molecular-mass dependencies of the hydrodynamic characteristics (intrinsic viscosity [η] (cm3g -1), sedimentation coefficient s0(s) and translational diffusion coefficient D0 (cm2s-1)) were established: [η]=0.198 M0.50±0.06; s0=8. 66×10-16 M0.50±0.04; D0=9. 30×10-5 M-0.50±0.04. On the basis of the hydrodynamics data the equilibrium rigidity and hydrodynamic diameter of PTMSP chains were evaluated. The equilibrium properties of the different disubstituted polyacetylenes molecules are compared on the base of the normalised scaling plots.
AB - Samples and fractions of a membrane-forming polymer, poly(1-trimethylsilyl- 1-propyne) (PTMSP), were studied by methods of molecular hydrodynamics (velocity sedimentation, translational isothermal diffusion and viscometry) in cyclohexane in the molecular mass range 60<M×10-3gmol -1<430. The following molecular-mass dependencies of the hydrodynamic characteristics (intrinsic viscosity [η] (cm3g -1), sedimentation coefficient s0(s) and translational diffusion coefficient D0 (cm2s-1)) were established: [η]=0.198 M0.50±0.06; s0=8. 66×10-16 M0.50±0.04; D0=9. 30×10-5 M-0.50±0.04. On the basis of the hydrodynamics data the equilibrium rigidity and hydrodynamic diameter of PTMSP chains were evaluated. The equilibrium properties of the different disubstituted polyacetylenes molecules are compared on the base of the normalised scaling plots.
KW - Disubstituted polyacetylenes
KW - Hydrodynamic properties
KW - Macromolecular size
UR - http://www.scopus.com/inward/record.url?scp=1642473084&partnerID=8YFLogxK
U2 - 10.1016/j.polymer.2003.12.023
DO - 10.1016/j.polymer.2003.12.023
M3 - Article
AN - SCOPUS:1642473084
VL - 45
SP - 1159
EP - 1166
JO - Polymer
JF - Polymer
SN - 0032-3861
IS - 4
ER -
ID: 94251796