Rheological properties of silicon polymer networks: The influence of the crosslink density

2002 ◽  
Vol 87 (7) ◽  
pp. 1152-1160 ◽  
Author(s):  
C. Robert ◽  
A. Crespy ◽  
S. Bastide ◽  
J.-M. Lopez-Cuesta ◽  
S. Kerboeuf ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Crosslink Density ◽  
Polymer Networks

scholarly journals Recent Observations on the Mechanical Properties of Polymer Networks

1971 ◽  
Vol 44 (5) ◽  
pp. 1256-1272 ◽  
Author(s):  
P. Thirion ◽  
R. Chasset
Keyword(s):  
Crosslink Density ◽  
Room Temperature ◽  
Dynamic Properties ◽  
Polymer Networks ◽  
The Other ◽  
Dilution Ratio ◽  
Chain Entanglement ◽  
Influence Of Temperature ◽  
Terminal Zone ◽  
Crosslinking Agents

Abstract The influence of temperature, elongation, swelling or dilution ratio, crosslink density, nature of the polymers, and crosslinking agents on the dynamic properties, creep and relaxation of polymer networks is surveyed in the terminal region of the spectrum. Whereas the deformation does not change the relaxation kinetics in large ranges of extension, the crosslink density acts as a reduced variable apparently accelerating uniformly the viscoelastic processes beyond the glass transition. The other possible reductions ‘time-temperature’ and ‘time—swelling’ do not necessarily seem related to the variations of free volume. From the viewpoint of the explanation of the relaxation mechanisms in the terminal zone, the fact that the equilibrium of loosely crosslinked elastomers would only virtually be reached after several years at room temperature seem in better agreement with chain entanglement effects, either trapped or not by the permanent network, than with the dissociation of secondary linkages.

scholarly journals What Controls the Structure and the Linear and Nonlinear Rheological Properties of Dense, Dynamic Supramolecular Polymer Networks?

2017 ◽  
Vol 50 (7) ◽  
pp. 2973-2985 ◽  
Author(s):  
Tingzi Yan ◽  
Klaus Schröter ◽  
Florian Herbst ◽  
Wolfgang H. Binder ◽  
Thomas Thurn-Albrecht
Keyword(s):  
Rheological Properties ◽  
Polymer Networks ◽  
Supramolecular Polymer ◽  
Linear And Nonlinear

Properties of Reversible Diels-Alder Furan/Maleimide Polymer Networks as Function of Crosslink Density

2012 ◽  
Vol 213 (2) ◽  
pp. 157-165 ◽  
Author(s):  
Claudio Toncelli ◽  
Dennis C. De Reus ◽  
Francesco Picchioni ◽  
Antonius A. Broekhuis
Keyword(s):  
Crosslink Density ◽  
Polymer Networks ◽  
Diels Alder

Methacrylic Acid Based Polymer Networks with a High Content of Unfunctionalized Nanosilica: Particle Distribution, Swelling, and Rheological Properties

2014 ◽  
Vol 119 (1) ◽  
pp. 610-622 ◽  
Author(s):  
Vesna V. Panic ◽  
Pavle M. Spasojevic ◽  
Tijana S. Radoman ◽  
Enis S. Dzunuzovic ◽  
Ivanka G. Popovic ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Methacrylic Acid ◽  
Particle Distribution ◽  
Polymer Networks ◽  
Nanosilica Particle

scholarly journals The role of stickiness in the rheology of semiflexible polymers

Soft Matter ◽  
2019 ◽  
Vol 15 (24) ◽  
pp. 4865-4872 ◽  
Author(s):  
Tom Golde ◽  
Martin Glaser ◽  
Cary Tutmarc ◽  
Iman Elbalasy ◽  
Constantin Huster ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Polymer Networks ◽  
Semiflexible Polymers ◽  
Semiflexible Polymer

The rheological properties of semiflexible polymer networks are strongly affected by a polymer specific stickiness.

Effect of cross-linking on rheological properties and a model for flexibility-rigidity transition in SBS/PBMA LIPNs

2016 ◽  
Vol 36 (2) ◽  
pp. 149-156 ◽  
Author(s):  
Yanqing Ma ◽  
Fajun He ◽  
Heyun Wang ◽  
Huan Liu ◽  
Zhong Wei
Keyword(s):  
Rheological Properties ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks ◽  
Butyl Methacrylate ◽  
Particle Analysis ◽  
Cross Linking ◽  
Scanning Calorimetry ◽  
Latex Particles ◽  
Gel Content ◽  
Rigidity Transition

Abstract A series of latex interpenetrating polymer networks (LIPNs) with various cross-linking levels were prepared with polystyrene-polybutadiene-polystyrene (SBS) and butyl methacrylate (BMA) by emulsion polymerization. The gel content of the resultant latex particles ranged from 13.2% to 90.8%, with the amount of cross-linking agent increased. The structural, thermal and rheological properties of the latex particles were investigated by laser particle analysis, transmission electron microscopy, Fourier transform infrared spectroscopy, gel permeation chromatography, thermogravimetric analysis, differential scanning calorimetry and torque rheometry. Furthermore, in order to study the effect of gel content on the flow properties, a model is shown to predict the existence of a flexibility-rigidity transition of SBS/PBMA LIPNs as the amount of cross-linking agent increased. Torque data were interpreted in terms of shear rate, shear stress and viscosity. The relationship between gel content of SBS/PBMA LIPNs and polyvinyl chloride compositions and their effect on plasticization performance were determined, and the predictions of the model have good agreement with their flexibility-rigidity transition.

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