Abstract
The transient birefringence and the transient tensile stress of a polystyrene melt at 140°C elongated with constant stretch rate and constant Hencky strain rate (ϵ) are presented. Compared with the response during linear viscoelastic deformation, the values of the reduced birefringence and the reduced stress are higher when the elongation is performed with ϵ = const., and are lower when the elongation is carried out with λ = const., The stress-optical coefficient turns out to be a function of duration and rate of deformation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
