2022
DOI: 10.1021/acs.macromol.2c00602
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Controlling Architecture and Mechanical Properties of Polyether Networks with Organoaluminum Catalysts

Abstract: Soft materials can sustain large, elastic, and reversible deformations, finding widespread use as elastomers and hydrogels. These materials constitute 3-D polymer networks and are typically synthesized by cross-linking polymer chains or copolymerizing monomer and cross-linker. Seminal investigations have enabled control over the network architecture by cross-linking chains of poly­(dimethylsiloxane), poly­(1,4-butadiene), or tetra-poly­(ethylene glycol); however, as soft materials become attractive for robotic… Show more

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Cited by 10 publications
(22 citation statements)
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“…. A similar observation was reported by Dookhith et al for fracture of analogous PEGE networks at room temperature and an initial stretch rate of 0.003 s −1 , 26 and here, we simply generalize the result for a range of temperatures and stretch rates. However, we provide additional insight by normalizing the rescaled crack propagation velocity, a T v, by the elasto-fracture length, ε L .…”
Section: ■ Results and Discussionsupporting
confidence: 84%
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“…. A similar observation was reported by Dookhith et al for fracture of analogous PEGE networks at room temperature and an initial stretch rate of 0.003 s −1 , 26 and here, we simply generalize the result for a range of temperatures and stretch rates. However, we provide additional insight by normalizing the rescaled crack propagation velocity, a T v, by the elasto-fracture length, ε L .…”
Section: ■ Results and Discussionsupporting
confidence: 84%
“…We synthesized a series of polyether networks through epoxide ring-opening copolymerization of ethyl glycidyl ether (EGE) monomer and 1,4-butanediol diglycidyl ether (BDGE) cross-linker. Detailed synthetic conditions are provided in the Materials and Methods section and Table S3 of Dookhith et al, but they differ both in the choice of organoaluminum catalyst (Figure A) and nominal cross-linker concentration. These networks are analogous to those synthesized by Dookhith et al, and their densities of chemical cross-links and entanglements are summarized in Table .…”
Section: Resultsmentioning
confidence: 99%
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