Analysis of co-extrusion process for preparation of gradient index plastic optical fiber
Resource
Polymer 44 (18): 5461-5467
Journal
Polymer
Journal Volume
44
Journal Issue
18
Pages
5461-5467
Date Issued
2003
Date
2003
Author(s)
Lin, Sung-Hwa
Abstract
The fabrication of gradient index plastic optical fiber in a closed co-extrusion process is simulated theoretically. The concentration dependency of the diffusivities of monomers in host polymer is taken into account on the basis of a modified free volume theory together with a generalized Flory-Huggins theory for a three-component polymer solution. The applicability of the model derived is justified by fitting it to the experimental data reported in the literature, and its performance is found to be satisfactory. We show that the diffusion of a mobile phase in a polymer solution is dependent upon the structure and the concentration of polymer, and the concentration of the other mobile phase present. © 2003 Elsevier Ltd. All rights reserved.
Type
journal article
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