A model of gravity-induced distribution of material in plasma polymerized aerosols and films

. A mathematical model of the volumetric part of plasma polymerization influenced by gravity is presented. Plasma-activated adhesion of monomer molecules to a surface of a germinal particle is assumed as a basic mechanism of particulate growth. The continuity equation for the flow of matter through...

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Bibliographic Details
Published in:The European physical journal. E, Soft matter and biological physics Soft matter and biological physics, 2008, Vol.25 (1), p.51-59
Main Author: Zyn, V. I.
Format: Article
Language:English
Subjects:
Aerosols - chemistry
Algorithms
Biological and Medical Physics
Biophysics
Complex Fluids and Microfluidics
Complex Systems
Diffusion
Gravitation
Models, Theoretical
Nanotechnology
Particle Size
Physics
Physics and Astronomy
Polymer Sciences
Polymers - chemistry
Regular Article
Soft and Granular Matter
Surface-Active Agents - chemistry
Surfaces and Interfaces
Thin Films
Time Factors
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Summary:. A mathematical model of the volumetric part of plasma polymerization influenced by gravity is presented. Plasma-activated adhesion of monomer molecules to a surface of a germinal particle is assumed as a basic mechanism of particulate growth. The continuity equation for the flow of matter through the discharge has been formulated and solved in two extreme asymptotic approximations --for small and major duration of the process. Several non-equilibrium distribution functions of the polymer were obtained, for instance, an amount of the particles as a function of their size or time of fall. Within the adopted model this function demonstrates a sharp downward increase inside a discharge. In addition it contains such parameters as the free fall acceleration or reaction rate coefficients, variations of which enable control of the discharge and properties of the disperse medium.
ISSN:1292-8941
1292-895X
DOI:10.1140/epje/i2007-10263-7