Polarization-interference micromethod for the study of mutual diffusion in polymer systems

A polarization-interference technique is developed for the study of mutual diffusion that is applicable to systems covering the whole concentration range from polymer--low-molecular-weight compound systems to polymer--oligmer systems. The technique is based on variations of the refraction index with...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 1988-05, Vol.19 (5), p.487-492
Main Authors: CHERTKYOV, V. G, CHALYKH, A. Y
Format: Article
Language:English
Subjects:
Applied sciences
Electrical, magnetic and optical properties
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
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Summary:A polarization-interference technique is developed for the study of mutual diffusion that is applicable to systems covering the whole concentration range from polymer--low-molecular-weight compound systems to polymer--oligmer systems. The technique is based on variations of the refraction index within the diffusion zone and is shown to have advantages over similar ones. Its accuracy in terms of wavelength is 0.04. The polybutadiene--dioctyl phthalate system is used to illustrate how the concentration distribution of the components is calculated. 4 ref.--AA
ISSN:0170-0839
1436-2449
DOI:10.1007/BF00263919