Paper Number
PO28 

Session
Poster Session

Title
Stress relaxation behavior of polymer glasses in extension and compression

Presentation Date and Time
October 8, 2014 (Wednesday) 6:05

Track / Room
Poster Session / Poster

Authors (Click on name to view author profile)

1. Liu, Jianning (University of Akron)
2. Lin, Panpan (University of Akron, Polymer Science)
3. Wang, Shi-Qing (University of Akron)

Author and Affiliation Lines (in printed abstract book)
Jianning Liu, Panpan Lin, and Shi-Qing Wang
Polymer Science, University of Akron, Akron, OH 44325

Speaker / Presenter 
Liu, Jianning

Text of Abstract
This work investigate the origin of mechanical stress by means of stress relaxation of ductile and brittle polymer glasses both prior to yielding and in post-yield regime. Tensile tests were carried out for ductile glasses such as bisphenol A polycarbonate, and compression tests were performed for polymers polystyrene (PS) and poly(methyl methacrylate) (PMMA). Results are discussed in term of our latest molecular model [1].
[1] “A phenomenological molecular model for yielding and brittle-ductile transition of polymer glasses” Wang, S. Q., Cheng, S., Lin, P., and Li, X., J. Chem. Phys. , to be published (2014).