84 citations · 123 across the 6 of their papers we have counts for
10 papers
Parallel Emergence of Rigidity and Collective Motion in a Family of Simulated Glass-Forming Polymer Fluids
Xiaolei Xu, Jack F. Douglas, Wen-Sheng Xu
The emergence of the solid state in glass-forming materials upon cooling is accompanied by changes in both thermodynamic and viscoelastic properties and by a precipitous drop in fl…
Equation of State and Entropy Theory Approach to Thermodynamic Scaling in Polymeric Glass-Forming Liquids
Jack F. Douglas, Wen-Sheng Xu
We show that thermodynamic scaling can be derived by combining the Murnaghan equation of state (EOS) with the generalized entropy theory (GET) of glass formation. In our theory, th…
Polymer Glass Formation: Role of Activation Free Energy, Configurational Entropy, and Collective Motion
Wen-Sheng Xu, Jack F. Douglas, Zhao-Yan Sun
We provide a perspective on polymer glass formation, with an emphasis on models in which the fluid entropy and collective particle motion dominate the theoretical description and d…
Rethinking the Transient Network Concept in Entangled Polymer Rheology
Wen-Sheng Xu, Christopher N. Lam, Jan-Michael Y. Carrillo +2
The classical rheological theories of entangled polymeric liquids are built upon two pillars: Gaussian statistics of entanglement strands and the assumption that the stress arises…
Comment on: "Relating Chain Conformations to Extensional Stress in Entangled Polymer Melts"
Wen-Sheng Xu, Christopher N. Lam, Jan-Michael Y. Carrillo +2
Based on non-equilibrium molecular dynamics simulations of entangled polymer melts, a recent Letter [Phys. Rev. Lett. , 047801 (2018), arXiv:1806.09509] claims that t…
Scaling Behavior of Anisotropy Relaxation in Deformed Polymers
Christopher N. Lam, Wen-Sheng Xu, Wei-Ren Chen +12
Drawing an analogy to the paradigm of quasi-elastic neutron scattering, we present a general approach for quantitatively investigating the spatiotemporal dependence of structural a…