Effect of Cross-Linker Functionality on the Adhesion of Highly Cross-Linked Polymer Networks:  A Molecular Dynamics Study of Epoxies

2004 ◽  
Vol 37 (2) ◽  
pp. 630-637 ◽  
Author(s):  
Mesfin Tsige ◽  
Mark J. Stevens
Keyword(s):  
Molecular Dynamics ◽  
Polymer Networks ◽  
Cross Linker

scholarly journals Cross-linker effect on solute adsorption in swollen thermoresponsive polymer networks

2019 ◽  
Vol 21 (12) ◽  
pp. 6588-6599 ◽  
Author(s):  
Sebastian Milster ◽  
Richard Chudoba ◽  
Matej Kanduč ◽  
Joachim Dzubiella
Keyword(s):  
Molecular Dynamics ◽  
Polymer Networks ◽  
Cross Link ◽  
Thermoresponsive Polymer ◽  
Thermoresponsive Polymers ◽  
Cross Linker ◽  
Solute Adsorption ◽  
The Cross ◽  
Linker Effect

Molecular dynamics study on the solute adsorption to thermoresponsive polymers estimating the cross-link impact on particle partitioning in swollen hydrogels.

Exploring secondary interactions and the role of temperature in moisture-contaminated polymer networks through molecular simulations

Soft Matter ◽  
2021 ◽  
Vol 17 (10) ◽  
pp. 2942-2956
Author(s):  
Rishabh D. Guha ◽  
Ogheneovo Idolor ◽  
Katherine Berkowitz ◽  
Melissa Pasquinelli ◽  
Landon R. Grace
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Temperature Variation ◽  
Polymer Networks ◽  
Molecular Simulations ◽  
Effect Of Temperature ◽  
Secondary Interactions ◽  
Dynamics Simulations ◽  
Secondary Bonding

We investigated the effect of temperature variation on the secondary bonding interactions between absorbed moisture and epoxies with different morphologies using molecular dynamics simulations.

scholarly journals Hydrogel Functionalized Polyester Fabrics by UV-Induced Photopolymerization

Polymers ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1329 ◽  
Author(s):  
Emanuela Lorusso ◽  
Wael Ali ◽  
Marcus Hildebrandt ◽  
Thomas Mayer-Gall ◽  
Jochen S. Gutmann
Keyword(s):  
Functional Groups ◽  
Polyethylene Terephthalate ◽  
Abrasion Resistance ◽  
Chemical Nature ◽  
Low Cost ◽  
Polymer Networks ◽  
Acrylate Monomer ◽  
Polyester Fabrics ◽  
Grafted Polymer ◽  
Cross Linker

We address a strategy to graft hydrogels onto polyethylene terephthalate (PET) fabrics using different acrylate-based monomers. The hydrogel-modified fabrics were prepared by a two-step modification. To this end, double functional groups were firstly introduced onto the PET surface via an aminolysis reaction involving allylamine. The final grafted polymer networks were then obtained after UV-induced radical photopolymerization by varying acrylate monomer types in the presence of a cross-linker. After characterization, the resulting hydrogels showed different morphologies and abrasion resistance performances depending on their chemical nature. UV-photopolymerization is a fast and low-cost method to achieve technical fabrics with specific desired properties.

Molecular dynamics studies of interpenetrating polymer networks for actuator devices

2008 ◽  
Author(s):  
Daniel Brandell ◽  
Heiki Kasemägi ◽  
Johann Citérin ◽  
Frédéric Vidal ◽  
Claude Chevrot ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Polymer Networks ◽  
Interpenetrating Polymer Networks

Molecular origin of shear thickening in transient polymer networks: A molecular dynamics study

2005 ◽  
Vol 17 (2) ◽  
pp. 115-118 ◽  
Author(s):  
T. Koga ◽  
F. Tanaka
Keyword(s):  
Molecular Dynamics ◽  
Polymer Networks ◽  
Shear Thickening ◽  
Molecular Origin

Thermo-mechanical Behavior of (Meth)Acrylate Shape-Memory Polymer Networks

2011 ◽  
Vol 1312 ◽  
Author(s):  
Carl P. Frick ◽  
Nishant Lakhera ◽  
Christopher M. Yakacki
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymer ◽  
Polymer Network ◽  
Polymer Networks ◽  
Weight Fraction ◽  
Crosslinking Density ◽  
Mechanical Stiffness ◽  
Actuation Force ◽  
Order Of Magnitude ◽  
Cross Linker

ABSTRACTOur overall approach is based on developing a photocrosslinkable polymer network with a favorable shape-memory response, using polymer chemistry and crosslinking density to control thermo-mechanical properties. Three polymer networks were created and thermo-mechanically tested, each from tert-Butyl acrylate linear builder co-polymerized with a poly(ethylene glycol) dimethacrylate cross-linker. By systematically altering the molecular weight and the weight fraction of the cross-linker, it was possible to create three polymers that exhibited the same glass transition temperature, but varied by almost an order of magnitude in rubbery modulus. Therefore, the mechanical stiffness could be tailored to suit a given application. Recovery behavior of the polymers was characterized over a range of deformation temperatures. It has been implicitly assumed a linear relationship between Free-Strain (i.e. no actuation force) and Fixed-Stress (i.e. maximum actuation force), however, this has never been confirmed experimentally. The energy per unit volume performed by the shape-memory polymer was quantified, and observed to be a function of strain recovered. The maximum recoverable work was shown to increase with cross-linking density, although the overall efficiency is similar for all materials tested.

Visualization and Quantitative Evaluation of Toughening Polymer Networks by a Sacrificial Dynamic Cross-Linker with Mechanochromic Properties

2020 ◽  
Vol 9 (8) ◽  
pp. 1108-1113 ◽  
Author(s):  
Hio Sakai ◽  
Daisuke Aoki ◽  
Kota Seshimo ◽  
Koichi Mayumi ◽  
Shotaro Nishitsuji ◽  
...  
Keyword(s):  
Quantitative Evaluation ◽  
Polymer Networks ◽  
Cross Linker
Sign in / Sign up

Export Citation Format

Share Document