ArticleMacromolecules2025
Phase-Change Silicone Elastomers for Tough, Soft Actuators.
Article in Macromolecules, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
9 authors.
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Abstract
Soft materials capable of controlled shape changes near ambient temperature are of interest for active devices that interact with living organisms. In this study, we achieve such functionalities by synthesizing responsive elastomers based on polydiethylsiloxane (PDES). Unlike conventional silicones, PDES elastomers are mesomorphic. Without any reinforcing additives, the mesophase improves the toughness of PDES to 8 times that of neat polydimethylsiloxane (PDMS) elastomers and 4 times that of Sylgard 184. Uniaxially stretched mesomorphic PDES elastomers undergo reversible shape changes under a bias load in response to temperature, generating 14% contractile strain on heating from 0 to 40 °C. The utility of PDES elastomers as actuators is enhanced by fabricating them into twisting actuators and describing strategies to minimize hysteresis during shape change cycles. The combination of toughness, actuation near ambient temperature, and environmental stability suggests that PDES could be attractive for biomedical devices where soft actuators interface with living organisms.
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