Nonlinear viscoelastic response of polymer melts: Hole burning spectroscopy

Xiangfu Shi, Gregory B. McKenna

Research output: Contribution to conferencePaperpeer-review

Abstract

A mechanical spectroscopy hole burning (MSHB) scheme was constructed and the experiments were carried out on a low density polyethylene and a polystyrene solution in their terminal relaxation regimes. Mechanical spectral holes were burned analogous to observations from non-resonant dielectric spectral hole burning (DSHB). A continuum nonlinear viscoelastic constitutive model BKZ without invoking an explicit heterogeneous dynamics for the relaxation response can not capture the subtle holes observed in the experiments. This strongly implies the MSHB is a novel tool to study the dynamic heterogeneity in polymeric systems.

Original languageEnglish
Pages271-275
Number of pages5
StatePublished - 2005
EventSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005 - Boston, MA, United States
Duration: May 1 2005May 5 2005

Conference

ConferenceSociety of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005
CountryUnited States
CityBoston, MA
Period05/1/0505/5/05

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