Last edited by Gom
Tuesday, July 21, 2020 | History

10 edition of Excluded Volume Effects in Polymer Solutions found in the catalog.

Excluded Volume Effects in Polymer Solutions

by Lothar Schäfer

  • 181 Want to read
  • 26 Currently reading

Published by Springer .
Written in English

    Subjects:
  • Organic chemistry,
  • Plastics & polymers technology,
  • Chemistry - Organic,
  • Polymer Chemistry,
  • Science,
  • Science/Mathematics,
  • Chemistry - General,
  • Material Science,
  • Physics,
  • Technology / Material Science

  • The Physical Object
    FormatHardcover
    Number of Pages554
    ID Numbers
    Open LibraryOL9062886M
    ISBN 103540655131
    ISBN 109783540655138
    OCLC/WorldCa40682575

      Book Search tips Selecting this option will search all publications across the Scitation platform Selecting this Excluded‐Volume Effects in Dilute Polymer Solutions. II. Limiting Viscosity Number suggesting that no drainage effect manifests itself in the viscosity behavior of the systems studied. This curve explains. According to a recently developed density functional theory, athermal polymer solutions, in which the solvent particles are smaller than the monomers, may undergo a bulk fluid-fluid phase separation, driven by excluded volume effects. In recent work, we showed that an inert surface immersed in the d .

    The scaling theory concentrates on a qualitative understanding of universal features of polymer solutions. This goal is approached in two steps. At first we identify the macroscopically relevant length scales, and we use dimensional analysis to write the observables as functions of dimensionless combinations of these variables. Cause and effects. The interior of cells is a crowded environment. For example, an Escherichia coli cell is only about 2 micrometres (μm) long and μm in diameter, with a cell volume of - μm 3. However, E. coli can contain up to 4, different types of proteins, and about 1, of these types are produced at a high enough level to be easily detected.

    polymer solutions, and writes from the balanced point of view of research worker and teacher. I believe this book complements those dealing with polymer solutions already published. No other text available so consistently includes the effect of excluded volume on the properties of dilute polymer. A study is made of the excluded volume dependence of quasielastic neutron scattering from polymer solutions which are concentrated enough that excluded volume interactions are screened for distances comparable to the mean-square-end-to-end vector distance. Both incoherent and coherent scattering are considered as well as the scattering by individual isotopically labeled chains.


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Excluded Volume Effects in Polymer Solutions by Lothar Schäfer Download PDF EPUB FB2

Excluded Volume Effects in Polymer Solutions: As Explained by the Renormalization Group [Schäfer, Lothar] on *FREE* shipping on qualifying offers.

Excluded Volume Effects in Polymer Solutions: As Explained by the Renormalization GroupCited by: The excluded volume of a molecule in solution is the effecive volume that is inaccessible to other molecules in the solution due to the presence of the first molecule.

The average size of an excluded volume chain is larger than that of an ideal chain. The excluded volume is positive in good solvents. Schäfer gives a concise overview of the static equilibrium properties of polymer solutions. In the first part diagrammatic perturbation theory is derived from scratch.

Excluded Volume Effects in Polymer Solutions as Explained by the Renormalization Group. Authors (view affiliations) The first three parts of this book may serve as the. Schäfer gives a concise overview of the static equilibrium properties of polymer solutions.

In the first part diagrammatic perturbation theory is derived from scratch. The second part illustrates the basic ideas of the renormalization group (RG). The crucial role of dilation invariance is : Springer-Verlag Berlin Heidelberg. Excluded volume causes the ends of a polymer chain in a solution to be further apart (on average) than they would be were there no excluded volume (e.g.

in case of ideal chain model). Excluded-Volume Effects in Sodium Hyaluronate Solutions Revisited. Yamakawa, “Helical Wormlike Chains in Polymer Solutions,” Springer, Berlin, Google Scholar 7. Kratky. Several studies have focused on developing a theory of the excluded volume effect in polymer solutions in good accord with experimental data.

There are very few expressions for the interpenetration factor, Ψ, which can be chosen for a given theory of the expansion factor α 3 s. The size of a polymer coil in a solvent depends on the excluded volume parameter.

The excluded volume, v= l3(1 - 2χ), is the volume that is inaccessible to other polymer molecules. The effect of excluded volume on the coil size of dilute linear polymers was investigated by off-lattice Monte Carlo simulations.

The radius of gyration R g was evaluated for a wide range of chain lengths at several temperatures and at the athermal condition. Crossover effects and molecular mass regions in solutions of worm-like polymers: a new relation for the determination of their statistical segment length, based on the blob model.

Polymer41 (12). Upward deviations from this expression occur at n K of ab regardless of the chain stiffness. Thus, the critical chain length L c for the onset of excluded-volume effect on the average.

Thus, the critical chain length Lc for the onset of excluded-volume effect on the average dimensions of a polymer is approximately proportional to q, the persistence length of the polymer, with a.

Buy Excluded Volume Effects in Polymer Solutions by Lothar Schafer from Waterstones today. Click and Collect from your local Waterstones or get FREE UK delivery on orders over £ The most probable explanation of this obvious discrepancy is the large molar volume ratio of solute to solvent together with the large number of consecutive segments that constitute each single molecule of the polymer chains present as solute.

The effect of excluded volume (EV) and hydrodynamic interaction (HI) on a dilute solution of flexible polymer chains situated in a shear field has been studied by means of a Brownian dynamics simulation.

The polymer was modelled as a Gaussian chain, accounting for the excluded volume effect by means of an exponentially decaying repulsive potential. Abstract. This chapter deals with the theory of the excluded-volume effects in dilute solution, such as various kinds of expansion factors and the second and third virial coefficients, developed on the basis of the perturbed HW chain which enables us to take account of both effects of excluded volume.

Chain stiffness and excluded-volume effects in –1 M aqueous NaCl solutions of sodium poly(2-acrylamidomethylpropanesulfonate) (Na PAMPS) at 25 °C have been studied by viscometry on Excluded volume effects in polymer solutions, as explained by the renormalization group. [Lothar Schäfer] Book, Internet Resource: All Authors / Contributors: Lothar Schäfer.

Find more information about: ISBN: OCLC Number: Description. Get this from a library. Excluded volume effects in polymer solutions, as explained by the renormalization group. [Lothar Schäfer] -- Schäfer gives a concise overview of the static equilibrium properties of polymer solutions.

In the first part diagrammatic perturbation theory is derived from scratch. The second part illustrates. The effect of excluded volume on the coil size of dilute linear polymers was investigated by off-lattice Monte Carlo simulations.

The radius of gyration R{sub g} was evaluated for a wide range of chain lengths at several temperatures and at the athermal condition. This note explains the following topics: Macromolecules in solution, Real polymer chains, Polymer chains and excluded volume effects, Partial molar and partial specific quantities, Flory-Krigbaum theory of dilute polymer solutions, Staudinger-Mark-Houwinks equation, Solutions of macromolecules, Ultra Centrifugation.

Author(s): Bo Nystrom.• The thermodynamics of polymer solutions • Characterization of polymer molecules in dilute polymer solutions a) End-group analysis b) Osmotic pressure c) Light scattering (static) d) Ultra centrifugation (equilibrium - and velocity Excluded Volume Effect (Good conditions) 21 rn r r   With the data for these quantities from the present experiments on PCP as well as from Berry's experiments on polystyrene, comparative tests of typical theories for the excluded‐volume effects on dilute polymer solutions were attempted.