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Solvent-induced stresses in glassy polymer: Elastic model

Published online by Cambridge University Press:  31 January 2011

Wei-Lung Wang ,
J. R. Chen  and
Sanboh Lee
Wei-Lung Wang
Affiliation:
Department of Materials Science, National Tsing Hua University, Hsinchu, Taiwan
J. R. Chen
Affiliation:
Department of Materials Science, National Tsing Hua University, Hsinchu, Taiwan
Sanboh Lee
Affiliation:
Department of Materials Science, National Tsing Hua University, Hsinchu, Taiwan
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Abstract

The solvent-induced stresses in glassy polymers were investigated. The mass transport accounts for case I, case II, and anomalous transport. Case I transport is attributed to the concentration gradient, whereas case II transport is attributed to stress relaxation. Anomalous transport is the mixture of case I and case II. Both one-side and two-side mass transports with the boundary condition of constant surface concentration are considered. The stresses and longitudinal displacement arising from the mass transport are formulated based on the linear elasticity theory. The maximum stress is always located at the surface at the initial time. The stresses are a function of the partial molal volume, Young's modulus, and Poisson's ratio. From the longitudinal displacement data, the partial molal volume was determined.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 10 , October 1999 , pp. 4111 - 4118
Copyright
Copyright © Materials Research Society 1999

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