Diffusion coefficient in polymer solutions | Zendy

Singh Diwakar | Zendy; Nigam K. D. P. | Zendy

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Diffusion coefficient in polymer solutions

Author(s) -

Singh Diwakar,

Nigam K. D. P.

Publication year - 1979

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1979.070231020

Subject(s) - thermal diffusivity , polymer , solvent , laminar flow , diffusion , dispersion (optics) , thermodynamics , mass diffusivity , materials science , molecular diffusion , tube (container) , chemistry , organic chemistry , composite material , physics , optics , metric (unit) , operations management , economics

Molecular diffusivity of a solute in a solvent may be determined by measuring the extent of dispersion of solute in solvent flowing in a straight circular tube under the conditions of laminar flow. This simple and rapid method for determination of molecular diffusivity in aquous polymer solutions is discussed. Experimental results show a substantial reduction in the solute diffusivity with increase in polymer concentration.

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