Phenomenology of Polymer Solution Dynamics by George D. J. Phillies

By George D. J. Phillies

Proposing a very new method of reading how polymers stream in non-dilute resolution, this e-book specializes in experimental evidence, now not theoretical speculations, and concentrates on polymer options, no longer dilute options or polymer melts. From centrifugation and solvent dynamics to viscosity and diffusion, experimental measurements and their quantitative representations are the middle of the dialogue. The e-book unearths numerous experiments by no means sooner than well-known as revealing polymer answer houses. a unique method of leisure phenomena thoroughly describes viscoelasticity and dielectric rest and the way they depend upon polymer measurement and focus. perfect for graduate scholars and researchers attracted to the houses of polymer suggestions, the publication covers genuine measurements on sensible structures, together with the very most recent effects. each major experimental technique is gifted in enormous element, giving remarkable insurance of polymers in answer.

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For each probe : polymer combination, µ(c) follows accurately a stretched exponential. 7 Effect of matrix molecular weight on the electrophoretic mobility, using as probes restriction fragments of size (a) 72, (b) 603, and (c) 23 130 base pairs. 32 MDa). (5, 6). At fixed c, µ(c, M) decreases markedly with increasing matrix M. 9 shows that probe topology has almost no effect on µ. At all c and M studied, the µ of the linear probes is very nearly equal to µ of the star probes. Saha, et al. conclude that the migration mechanisms for their linear and star DNA do not change between c < c∗ and c > c∗ .

Macromolecules, 10 (1977), 1157–1161. [2] G. Pouyet and J. Dayantis. Velocity sedimentation in the semidilute concentration range of polymers dissolved in good solvents. Macromolecules, 12 (1979), 293–296. [3] D. Langevin and F. Rondelez. Sedimentation of large colloidal particles through semidilute polymer solutions. Polymer, 19 (1978), 875–882. [4] T. C. Laurent and A. Pietruszkiewicz. The effect of hyaluronic acid on the sedimentation rate of other substances. Biochimica et Biophysica Acta, 49 (1961), 258–264.

5. The matrix concentration was no larger than 7 g/l, which was enough to reduce s of the larger particles (latex spheres, radii 88–365 nm) by 2–3 orders of magnitude. 3 Probe sedimentation 19 indicated that B depends at least weakly on the matrix polymer molecular weight, but does not depend on solution pH or ionic strength. Laurent, et al. 7 MDa hyaluronic acid(5). 5. , experiments were in a linear domain in which solution viscoelastic properties were not evident. Contrast is to be made with the electrophoretic mobility, as discussed in the next chapter, in which one can enter a nonlinear domain in which particle mobility depends on the applied field E.

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