Strain stiffening elastomers with swelling inclusions

Kröger, Martin; Style, Robert W.; Dufresne, Eric R.

doi:10.1039/d3sm00496a

Soft Matter

2023

DOI: 10.1039/d3sm00496a

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Strain stiffening elastomers with swelling inclusions

Martin Kröger

Robert W. Style

Eric R. Dufresne

Abstract: Inhomogeneously swollen elastomers are an emergent class of materials, comprising elastic matrices with inclusion phases in the form of microgel particles or osmolytes. Swelling impacts the local stiffness around an inclusion as highlighted in plots of elastic surfaces.

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Cited by 2 publications

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Shaping the structure and properties of HyTemp using polyethylene glycol diglycidyl ether cross‐linkers

Dossi,

Mutele‐Nkuna,

Wilkinson

et al. 2024

Journal of Polymer Science

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Novel elastomers are made by reaction of hydroxyl‐terminated polyacrylic ester (HyTemp) with polyethylene glycol (PEG, number of ethylene glycol units 1, 3, 6, 9) based cross‐linkers. The influence of the cross‐linker length, the HyTemp/cross‐linker (w/w) ratio and the cross‐linking accelerator trifluoromethanesulfonate scandium salt (ScTFMS) on the structure and the properties of the materials are studied. The cross‐linker length has not influence on the glass transition (Tg) of the products because of the presence of the flexible PEG units that cancels out the cross‐linking effect associated to a shift to higher Tg. A two‐domain structure is seen by the presence of a dual Tg in samples cured with ScTFMS. Mathematical analysis of the modulated differential scanning calorimetry curves offers for the first time the possibility to identify/confirm structural differences in complex three‐dimensional polymeric structures. Scanning electron microscopy and swelling experiments in ethyl acetate respectively reveal an increase in the pore size (1.13 to 5.48 nm) and in the absorption ability of the elastomers cured with different types and quantities of PEG cross‐linker. The new elastomeric materials are exhibiting a rubbery state over a wide temperature range and absorptivity for the potential recovery of pollutants in soil and/or water.

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Shaping the structure and properties of HyTemp using polyethylene glycol diglycidyl ether cross‐linkers

Dossi,

Mutele‐Nkuna,

Wilkinson

et al. 2024

Journal of Polymer Science

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Effect of liquid inclusions on the elasto-mechanical properties of solid-liquid composites

Kundapur,

Unnikrishnan

2023

Mechanics of Advanced Materials and Structures

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Strain stiffening elastomers with swelling inclusions

Abstract: Inhomogeneously swollen elastomers are an emergent class of materials, comprising elastic matrices with inclusion phases in the form of microgel particles or osmolytes. Swelling impacts the local stiffness around an inclusion as highlighted in plots of elastic surfaces.

Cited by 2 publications

References 25 publications

Shaping the structure and properties of HyTemp using polyethylene glycol diglycidyl ether cross‐linkers

Shaping the structure and properties of HyTemp using polyethylene glycol diglycidyl ether cross‐linkers

Effect of liquid inclusions on the elasto-mechanical properties of solid-liquid composites

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