Unusual Mechanical Performance of Amphiphilic Crosslinked Polymer Networks

2007 ◽  
Vol 129 (3) ◽  
pp. 506-507 ◽  
Author(s):  
Jinqi Xu ◽  
David A. Bohnsack ◽  
Michael E. Mackay ◽  
Karen L. Wooley
Keyword(s):  
Mechanical Performance ◽  
Polymer Networks ◽  
Crosslinked Polymer

Mixing the immiscible: blends of dynamic polymer networks

RSC Advances ◽  
2015 ◽  
Vol 5 (23) ◽  
pp. 17514-17518 ◽  
Author(s):  
Roberto Martin ◽  
Alaitz Rekondo ◽  
Alaitz Ruiz de Luzuriaga ◽  
Antxon Santamaria ◽  
Ibon Odriozola
Keyword(s):  
Mechanical Properties ◽  
Polymer Networks ◽  
Immiscible Blends ◽  
Crosslinked Polymer ◽  
Immiscible Polymer ◽  
Superior Mechanical Properties

Is it possible to blend two immiscible polymer networks starting from their cured state? A simple thermomechanical approach permits blending two dynamically crosslinked polymer networks, to give blends with superior mechanical properties.

Novel AB crosslinked polymer networks based on 1-vinylimidazole- terminated polyurethane and poly(methyl methacrylate)

2006 ◽  
Vol 55 (11) ◽  
pp. 1209-1214 ◽  
Author(s):  
Sriram Venkataramani ◽  
Tharanikkarasu Kannan ◽  
Ganga Radhakrishnan
Keyword(s):  
Methyl Methacrylate ◽  
Polymer Networks ◽  
Poly Methyl Methacrylate ◽  
Crosslinked Polymer

scholarly journals Polybutadiene Vitrimers with Tunable Epoxy Ratios: Preparation and Properties

Polymers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 4157
Author(s):  
Liqian Zhu ◽  
Li Xu ◽  
Suyun Jie ◽  
Bogeng Li
Keyword(s):  
Polymer Networks ◽  
Crosslinking Density ◽  
Side Group ◽  
Relaxation Properties ◽  
New Class ◽  
Crosslinked Polymer ◽  
Effective Exchange ◽  
Crosslinked Networks ◽  
Esterification Reactions ◽  
Group Effects

Traditional crosslinked diene rubber has excellent thermal–mechanical properties and solvent resistance, yet it is incapable of being recycled via universal molding or injecting. Vitrimers, a new class of covalently crosslinked polymer networks, can be topologically rearranged with the associative exchange mechanism, endowing them with thermoplasticity. Introducing the concept of vitrimers into crosslinked networks for the recycling of rubbers is currently an attractive research topic. However, designing tailored rubber vitrimers still remains a challenge. Herein, polybutadiene (PB) vitrimers with different structures were prepared via partial epoxidation of double bonds and ring-opening esterification reactions. Their mechanical and relaxation properties were investigated. It was found that the increasing crosslinking density can increase tensile strength and activation energy for altering the network topology. The influence of side-group effects on their relaxation properties shows that an increase in the number of epoxy groups on the polybutadiene chain can increase the chance of an effective exchange of disulfide units. This work provides a simple network design which can tune vitrimer properties via altering the crosslinking density and side-group effects.

scholarly journals Mesoscopic Simulations of Crosslinked Polymer Networks

2016 ◽  
Vol 738 ◽  
pp. 012063 ◽  
Author(s):  
Grigorios Megariotis ◽  
Georgios G. Vogiatzis ◽  
Ludwig Schneider ◽  
Marcus Müller ◽  
Doros N. Theodorou
Keyword(s):  
Polymer Networks ◽  
Crosslinked Polymer ◽  
Mesoscopic Simulations
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