In recent years,flexible ionic conductors have made remarkable progress in the fields of energy storage devices and flexible sensors.However,most of these materials still face challenges such as the difficult trade-of...In recent years,flexible ionic conductors have made remarkable progress in the fields of energy storage devices and flexible sensors.However,most of these materials still face challenges such as the difficult trade-off between stretchability and high mechanical strength,as well as insufficient ionic conductivity.Among them,polymerizable deep eutectic solvents(PDES),which possess both hydrogen bond network construction capabilities and ionic conduction properties,have demonstrated great advantages in the synthesis of flexible ionic conductors.Herein,we report an ionic conductive elastomer(ICE)named PCHS-X based on PDES composed of 2-(methacryloyloxy)-N,N,N-trimethylammonium methyl sulfate(MA-MS),choline chloride(ChCl),and 2-hydroxyethyl acrylate(HEA).The introduction of MA-MS enabled the polymer network to form abundant hydrogen bonds,endowing PCHS-X with excellent mechanical strength,high transparency,favorable ionic conductivity,self-adhesiveness,and self-healing efficiency.When used as a strain sensor,the PCHS-X exhibits highly sensitive strain response,along with good stability and durability,allowing it to accurately monitor the movement of human body parts such as fingers,wrists,elbows,and knees.Additionally,owing to the enhanced ionic mobility at higher temperatures,this material also possesses excellent temperature sensing performance,enabling the fabrication of simple temperature sensors that can sensitively respond to temperature changes.This research provides new strategies for the practical applications of flexible electronic devices in fields such as wearable health monitoring and intelligent human-machine interaction.展开更多
基金financially supported by the Natural Science Foundation of the Jiangsu Higher Education Institutions of China(No.20KJA150009)a Project Funded by the Priority Academic Program Development(PAPD)of Jiangsu Higher Education Institutions。
文摘In recent years,flexible ionic conductors have made remarkable progress in the fields of energy storage devices and flexible sensors.However,most of these materials still face challenges such as the difficult trade-off between stretchability and high mechanical strength,as well as insufficient ionic conductivity.Among them,polymerizable deep eutectic solvents(PDES),which possess both hydrogen bond network construction capabilities and ionic conduction properties,have demonstrated great advantages in the synthesis of flexible ionic conductors.Herein,we report an ionic conductive elastomer(ICE)named PCHS-X based on PDES composed of 2-(methacryloyloxy)-N,N,N-trimethylammonium methyl sulfate(MA-MS),choline chloride(ChCl),and 2-hydroxyethyl acrylate(HEA).The introduction of MA-MS enabled the polymer network to form abundant hydrogen bonds,endowing PCHS-X with excellent mechanical strength,high transparency,favorable ionic conductivity,self-adhesiveness,and self-healing efficiency.When used as a strain sensor,the PCHS-X exhibits highly sensitive strain response,along with good stability and durability,allowing it to accurately monitor the movement of human body parts such as fingers,wrists,elbows,and knees.Additionally,owing to the enhanced ionic mobility at higher temperatures,this material also possesses excellent temperature sensing performance,enabling the fabrication of simple temperature sensors that can sensitively respond to temperature changes.This research provides new strategies for the practical applications of flexible electronic devices in fields such as wearable health monitoring and intelligent human-machine interaction.
