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Micro- and macroconformation of macromolecules

5. A scale-up rule of rouse theory to entangled homopolymers and random copolymers

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Summary

A semiempirical modification of FERRY's extension of the ROUSE spectrum in the entanglement region is proposed, with a smooth transition in the relaxation behaviour. Consequently the zero shear viscosity-molecular weight relationship is modelled. With the molecular weight between the entanglements as the only parameter measurements on cis- 1, 4-polybutadiene could be reproduced accurately, comparing favourably with the recent multiparameter theory by SHEN.

A simple linear weighting scheme for the average friction coefficient of chemical and configurational copolymers, e. g. cis-trans-polybutadienes, is proposed.

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References

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Herrn Prof. Dr. Helmut Holzer zu seinem 60. Geburtstag gewidmet

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Alvarez, G.A., Cantow, H. Micro- and macroconformation of macromolecules. Polymer Bulletin 4, 383–390 (1981). https://doi.org/10.1007/BF00254969

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Keywords

  • Polymer
  • Molecular Weight
  • Friction Coefficient
  • Macromolecule
  • Material Processing