Journal of Polymer Science Part B: Polymer Physics
Copyright © 2012 Wiley Periodicals, Inc., A Wiley Company
Online ISSN: 1099-0488
Associated Title(s): Journal of Polymer Science Part A: Polymer Chemistry
Most Downloaded Articles
Publishes papers on the physics of polymers, including applications, theory and modeling and experiments. 2012 ISI Impact Factor: 2.221
Recently Published Articles
- Viscoelastic modeling of nanoindentation experiments: A multicurve method
Meiyu Zhai and Gregory B. McKenna
Article first published online: 11 MAR 2014 | DOI: 10.1002/polb.23470
Nanoindentation is an increasingly used method of extracting surface mechanical properties of viscoelastic materials, especially polymers. Here, using a viscoelastic analysis for the indentation test, the material functions can be extracted from the indentation loading curves, either at constant loading rate or constant indentation rate. Simultaneously fitting indentation tests covering several different indentation rates gives a better determination of relaxation modulus or creep compliance than a single curve analysis does.
- The potential use of electrospun PLA nanofibers as alternative reinforcements in an epoxy composite system
Yu Dong, Tariq Mosaval, Hazim J. Haroosh, Rehan Umer, Hitoshi Takagi and Kin-Tak Lau
Article first published online: 28 FEB 2014 | DOI: 10.1002/polb.23467
The emerging challenges in the manufacture of polymer nanocomposites result in the development of new reinforcements, among which electrospun polylactic acid (PLA) nanofibers demonstrate great potential due to their simple fabrication process via electrospinning to produce continuous, nondestructive, and well-bonded fibrous structures. Such fibers provide enhanced mechanical and thermal properties as effective fillers in epoxy/electrospun PLA nanofiber composites.
- Experimental clues of soft glassy rheology in strained filled elastomers
Françoise Ehrburger-Dolle, Isabelle Morfin, Françoise Bley, Frédéric Livet, Gert Heinrich, Luc Piché and Mark Sutton
Article first published online: 27 FEB 2014 | DOI: 10.1002/polb.23463
This study is devoted to the analysis of the behavior of the tensile relaxation modulus of a series of cross-linked filled elastomers at a given strain level reached either by a positive or a negative strain step. The relevance of the soft glassy rheology model is examined, and it is suggested that the decrease of the power law exponent α reveals a decrease of the polymer chain mobility, providing experimental clues for soft glassy rheology features in strained filled elastomers.
- Stiffness quantification of conductive polymers for bioelectrodes
Rachelle T. Hassarati, Josef A. Goding, Sungchul Baek, Alexander J. Patton, Laura A. Poole-Warren and Rylie A. Green
Article first published online: 26 FEB 2014 | DOI: 10.1002/polb.23465
Conductive polymers (CPs) have been explored as coatings for electrodes, which offer a softer and rougher interface for improved cell interactions. However, due to limitations of analytical techniques and the substrate-dependent nature of electrodeposited CPs there is very little information quantifying CP physico-mechanical properties. To address this knowledge gap, in this article, peak-force quantitative nanomechanical mapping atomic force microscopy has been applied and values for CP elastic moduli are presented under both dry and hydrated conditions.
- Influence of the electrostatic interactions on thermophysical properties of polyimides: Molecular-dynamics simulations
Stanislav G. Falkovich, Sergey V. Lyulin, Victor M. Nazarychev, Sergey V. Larin, Andrey A. Gurtovenko, Natalia V. Lukasheva and Alexey V. Lyulin
Article first published online: 24 FEB 2014 | DOI: 10.1002/polb.23460
Polyimides are popular as high-performance materials because they are lighter than, for example, metals with comparable toughness and thermal resistance. Even tiny modifications in chemical structure can significantly influence their physical properties, but experimental data are not yet predictive of primary influences of modifications on the materials' properties. Here, two industrial thermoplastics that contain the same dianhydride fragments but different diamine fragments are computationally investigated. The difference in diamines leads to noticeable differences in the thermophysical properties.