Structure‐Property‐Processing relationships of polyurethane‐polyester interpenetrating polymer networks

K. J. Wang, T. Jeffrey Hsu, L. James Lee*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Interpenetrating polymer networks of polyurethane and unsaturated polyester were prepared by reaction injection molding (RIM) and transfer molding. The structures of the molded samples were analyzed by electron microscopy and dynamic mechanical analysis. It was found that polymer morphology and dynamic mechanical properties depend strongly on the molding temperature, reaction rate and reaction sequence. Simplified structure models based on Takayanagi's model and sample morphology can predict the storage modulus reasonably well but not the tanδ.

Original languageEnglish
Pages (from-to)397-404
Number of pages8
JournalPolymer Engineering & Science
Issue number6
StatePublished - Mar 1989


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