Network topology and stability of homologous multiblock copolymer physical gels

The mechanical properties of physical gels generated by selectively swelling a homologous series of linear multiblock copolymers are investigated by quasistatic uniaxial tensile tests. We use the slip-tube network model to extract the contributions arising from network crosslinks and chain entanglem...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 2020-09, Vol.153 (12), p.124904-124904
Main Authors: Yan, Jiaqi, Tuhin, Mohammad O., Sadler, J. David, Smith, Steven D., Pasquinelli, Melissa A., Spontak, Richard J.
Format: Article
Language:English
Subjects:
Chains
Computer simulation
Copolymers
Crosslinking
Dynamic stability
Gels
Homology
Mechanical properties
Molecular conformation
Network topologies
Rheological properties
Rheology
Tensile tests
Thermal stability
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The mechanical properties of physical gels generated by selectively swelling a homologous series of linear multiblock copolymers are investigated by quasistatic uniaxial tensile tests. We use the slip-tube network model to extract the contributions arising from network crosslinks and chain entanglements. The composition dependence of these contributions is established and considered in terms of simulations that identify the probabilities associated with chain conformations. Dynamic rheology provides additional insight into the characteristics and thermal stability of the molecular networks.
ISSN:0021-9606
1089-7690
DOI:10.1063/5.0028136