Rapid polymer transport in concentrated solutions

  • W. D. Comper
  • B. N. Preston
Conference paper
Part of the Advances in Polymer Science book series (POLYMER, volume 55)


This article discusses the rapid transport of polymers in terms of diffusional or diffusional-related processes. In particular it reviews:
  1. 1.

    Polymer and solvent diffusion in binary systems.

  2. 2.

    Polymer transport in ternary systems including an analysis of the cross diffusion coefficients and component distribution within the systems.

  3. 3.

    Macromolecular transport in transient polymeric networks and an introduction to the observation of rapid migration in such systems.

  4. 4.

    Detailed discussion of measurement of and factors involved in rapid polymer transport in multicomponent systems.

  5. 5.

    Identification of structured flows associated with rapid polymer transport and some simple mechanistic interpretations.

  6. 6.

    Rapid polymer transport and model biological systems.


The aim of the article is to introduce new observations of diffusive-convective phenomena in polymer chemistry. The processes discussed are of significance to those interested in transport phenomena.


Apparent Diffusion Coefficient Structure Flow Virial Coefficient Mutual Diffusion Rapid Transport 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

List of Symbols




surface area


nth virial coefficient


absorbance at 237 nm at time t


concentration in mass/volume units


concentration above and below the boundary, respectively


initial concentration


critical polymer concentration


diffusion coefficient at infinite dilution


co-operative diffusion coefficient


intradiffusion or self-diffusion coefficient


mutual diffusion coefficient in a volume-fixed frame of reference.

Dii, Dij

principal and cross-diffusion coefficients, respectively


Stefan-Maxwell diffusion coefficient


frictional coefficient per mole of i


flux of i


flux of i in a volume-fixed reference frame


concentration of rods expressed as cm polymer per cm3 solution


phenomemological coefficients


molar concentration


molecular weight (number average)

\(\bar M_n\)

number average molecular weight

\(\bar M_w\)

weight average molecular weight


amount transported over a boundary


radius of diffusing particle


universal gas constant


sedimentation coefficient






transport coefficient


transport coefficient obtained by diffusional analysis employing the open-ended capillary technique




critical volume


molar volume of i

\(\bar V_i\)

partial specific volume of i


fraction of species i


frictional coefficient




relative viscosity


solvent viscosity


chemical potential of i


distance between successive contact points in a transient network or ‘length of blob’


osmotic pressure







poly(vinyl alcohol)



dextran Tn

dextran, \(\bar M_w \simeq 1000 \times n\)


Tritiated water


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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • W. D. Comper
    • 1
  • B. N. Preston
    • 1
  1. 1.Biochemistry DepartmentMonash UniversityClaytonAustralia

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