Abstract
Strategies for synthesis and processing of silicone rubber materials in three-dimensional (3D) structures are of significant interest based on their exceptional potential in many applications including flexible electronics and biomedical devices. Here, we present a synthetic approach of crosslinked polydimethylsiloxane (PDMS) exhibiting dynamic siloxane bond exchange for sufficient stress relaxation capability to enable versatile processabilities including reprocessing, remolding, self-healing, and hot-melt extrusion 3D printing. Considering the significant potential of recyclable silicone materials and their 3D structures, presented approaches enabled by dynamic exchangeable PDMS can provide a new pathway to replace conventional unrecyclable silicone used in diverse industrial sectors.
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Acknowledgments
This work was supported by the Korea Research Institute of Chemical Technology (KRICT) Core Project (KS2421-20), GO KRICT Project (BSF23-115), and Hyundai Motor Company.
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WL: data collection, analysis, interpretation, writing, HK: visualization, writing, reviewing, editing, ISH: validation, reviewing, CGC: validation, reviewing, SP: conceptualization, methodology, supervision, reviewing, DGK: conceptualization, methodology, supervision, reviewing, YSK: conceptualization, methodology, supervision, reviewing.
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Lee, W., Kim, H., Han, IS. et al. Reprocessable and 3D printable polydimethylsiloxane by dynamic siloxane bond exchange. MRS Communications (2024). https://doi.org/10.1557/s43579-024-00553-4
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DOI: https://doi.org/10.1557/s43579-024-00553-4