Non-Maxwellian viscoelastic stress relaxations in soft matter

J Song, N Holten-Andersen, GH McKinley - Soft Matter, 2023 - pubs.rsc.org
Viscoelastic stress relaxation is a basic characteristic of soft matter systems such as colloids,
gels, and biological networks. Although the Maxwell model of linear viscoelasticity provides …

Viscoelasticity of polymers

KS Cho - Springer Series in Materials Science, 2016 - Springer
Viscoelasticity or rheology is important in polymer science and engineering because it plays
a crucial role in production and characterization of polymeric materials. Understanding the …

Effect of organoclay as a compatibilizer in poly (lactic acid) and natural rubber blends

HG Ock, DH Kim, KH Ahn, SJ Lee, JM Maia - European Polymer Journal, 2016 - Elsevier
In this study, the effect of organoclay as a compatibilizer in immiscible poly (lactic acid)(PLA)
and natural rubber (NR) blends was studied. Structural development of PLA90/NR10 blend …

pyReSpect: A computer program to extract discrete and continuous spectra from stress relaxation experiments

S Shanbhag - Macromolecular Theory and Simulations, 2019 - Wiley Online Library
An open‐source software package “pyReSpect” is presented to extract relaxation spectra
from stress relaxation experiments. It employs nonlinear Tikhonov regularization to obtain …

Processing of viscoelastic data via a generalized fractional model

X Su, D Yao, W Xu - International Journal of Engineering Science, 2021 - Elsevier
Data fitting and interconversion remain to be a difficult task in linear viscoelasticity. On the
basis of transfer function, a generalized fractional model is proposed to fit linear viscoelastic …

Relaxation spectra using nonlinear Tikhonov regularization with a Bayesian criterion

S Shanbhag - Rheologica Acta, 2020 - Springer
Nonlinear Tikhonov regularization within a Bayesian framework is incorporated into a
computer program called pyReSpect, which infers the continuous and discrete relaxation …

Rheological analysis of core-stabilized Pluronic F127 by semi-interpenetrating network (sIPN) in aqueous solution

X Li, E Park, K Hyun, L Oktavia, M Kwak - Journal of Rheology, 2018 - pubs.aip.org
A poly (ethylene oxide)-poly (propylene oxide)-poly (ethylene oxide) triblock copolymer
(Pluronic F127) micelle system was stabilized using an ultraviolet-induced semi …

Continuous relaxation spectra for constitutive models in medium-amplitude oscillatory shear

L Martinetti, JM Soulages, RH Ewoldt - Journal of Rheology, 2018 - pubs.aip.org
We derive and demonstrate how analytical solutions for strain-controlled medium-amplitude
oscillatory shear (MAOS) can be coupled with a continuous distribution of relaxation times …

On the use of continuous relaxation spectra to characterize model polymers

S Ankiewicz, N Orbey, H Watanabe, H Lentzakis… - Journal of …, 2016 - pubs.aip.org
There have been many more papers published on methods for inferring a continuous
relaxation spectrum from linear viscoelastic data than have been published on the use of …

A multiple approach in determination of interfacial tension of biodegradable melt-mixed PBAT/EVOH blends: Correlation of morphology, rheology and mechanical …

M Elhamnia, GH Motlagh, SH Jafari - Polymer Testing, 2020 - Elsevier
The interfacial tension of biodegradable melt-mixed blends of poly (butylene adipate-co-
terephthalate), PBAT, and poly (ethylene-co-vinyl alcohol),(EVOH), was measured by …