Abstract
Dynamic viscoelasticity and dynamic birefringence of phenolic resins having different cross-linking density were examined to clarify the relationship between structure and viscoelastic properties. Dynamic modulus was found to be insensitive to cross-linking density at a high cross-linking density, where molar mass between the cross-linking points was smaller than the viscoelastic segment size of phenolic resin, whereas the complex strain-optical coefficient reflects more sensitively the cross-linking density.
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This work was partly supported by the Grant-in-Aid for Scientific Research (No. 24350120) of the Japan Society for the Promotion of Science.
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Maji, S., Urakawa, O. & Inoue, T. Viscoelastic properties and birefringence of phenolic resins. Polym J 46, 272–276 (2014). https://doi.org/10.1038/pj.2013.97
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DOI: https://doi.org/10.1038/pj.2013.97
