Volume 47, Number 1, January-February 2016
|Page(s)||22 - 26|
|Published online||10 February 2016|
Soft Janus, wrinkles and all
CENIMAT- I3N, Departamento de Ciência dos Materiais – Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Portugal
2 ISEL – Instituto Superior de Engenharia de Lisboa – Instituto Politécnico de Lisboa, Portugal
3 CEDOC – Centro de Estudos de Doenças Crónicas – NOVA Medical School, Universidade Nova de Lisboa, Portugal
4 Centro de Física Teórica e Computacional – Faculdade de Ciências da Universidade de Lisboa, Portugal
5 CeFEMA – Centro de Física e Engenharia de Materiais Avançados Departamento de Física do Instituto Superior Técnico – Universidade de Lisboa, Portugal
Right now you are probably sitting on a comfy cushion. This is most likely filled with polyurethane (PU) foam. PUs are very long molecules made up of many repeating units. If the repeating units are prepolymers – intermediate-mass building blocks – with more than two reactive end groups, a three-dimensional network will form – a rubber, or elastomer, which can behave elastically depending on the degree of network cross-linking.
© European Physical Society, EDP Sciences, 2016
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