Solvent transport in spherical polymer-penetrant systems

Jenn Sen Lin, Chi Chuan Hwang, Chao Ming Lin, Juin Yih Lai

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


This paper studies the transport phenomenon of solvent-penetrant systems in spherical glassy polymers. This problem involves a moving interface between a glassy region and rubbery region, the solution of which has traditionally proven very difficult. In this paper, the perturbation method is used for the complete time history of the penetrant front for a small range of perturbation control parameter ε. Then, a local similarity numerical simulation is used to expand the results for a large range of ε. Results reveal that interface velocity near time = 0 is constant regardless of sphere dimensions, and that the interface velocity decreases after its initial constant phase, accelerating again as the interface position approaches the center of the sphere. With the proposed technique, the penetration times for different radii can be predicted.

Original languageEnglish
Pages (from-to)151-156
Number of pages6
JournalChemical Engineering Science
Issue number1
Publication statusPublished - 2001

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering


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