{"title":"微相分离诱导的聚齐瓦离子凝胶具有坚韧、高导电性、自愈合和形状记忆特性,适用于可穿戴电气设备","authors":"Guang Zeng, Wenshuo Gao, Weicheng Qiu, Guanling Li, Shousen Chen, Xin He, Guoxing Sun, Weijia Yang, Yue Xin","doi":"10.1039/d4ta04228j","DOIUrl":null,"url":null,"abstract":"Ionogels have aroused much attention due to their unique advantages for constructing wearable devices. However, integrating the properties of strong toughness, high ion conductivity, self-healing and shape-memory into one ionogel is still challenging. Herein, we develop a polyzwitterionic ionogel through the copolymerization of zwitterionic [2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) (SBMA) and acrylamide (AAm) in ionic liquid (IL) of 1-ethyl-3-methylimidazolium ethyl sulfate (EMIES). The facile ability to engage in hydrogen bonds for poly acrylamide (PAM) segments makes them easily aggregated in EMIES, resulting in the formation of polymer-rich domains. In contrast, poly[2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) (PSBMA) segments combined with EMIES form solvent-rich phase due to their good compatibility. Therefore, interpenetrating phase-separated structure is produced during the polymerization. The polymer-rich phase can dissipate energy and provide high strength, while the solvent-rich phase enables the ionogel with large stretchability. Besides, the zwitterionic groups on PSBMA can provide separate and continuous ion conductive pathways, facilitating the ion transport. Attributing to the synergy of phase separation and zwitterionic feature, the resulting ionogel presents balanced mechanical and electrical properties with high toughness of 2.7 MJ/m3 and ion conductivity of 1.3 mS/cm, as well as desirable self-healing ability. The resulting PSBMA/PAAm ionogel demonstrated excellent performance as a temperature and strain sensor. Remarkably, the ionogel possessed outstanding shape-memory property, making the ionogel can fix on the human joint or object with nonzero Gaussian curvature and maintains the sensing functions. Therefore, the morphing ionogel based sensor displays huge versatilities and potentials on detecting the signals variations for the objects with sophisticated geometries.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":null,"pages":null},"PeriodicalIF":10.7000,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microphase separation induced polyzwitterionic ionogel with tough, highly conductive, self-healing and shape-memory properties for wearable electrical devices\",\"authors\":\"Guang Zeng, Wenshuo Gao, Weicheng Qiu, Guanling Li, Shousen Chen, Xin He, Guoxing Sun, Weijia Yang, Yue Xin\",\"doi\":\"10.1039/d4ta04228j\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ionogels have aroused much attention due to their unique advantages for constructing wearable devices. However, integrating the properties of strong toughness, high ion conductivity, self-healing and shape-memory into one ionogel is still challenging. Herein, we develop a polyzwitterionic ionogel through the copolymerization of zwitterionic [2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) (SBMA) and acrylamide (AAm) in ionic liquid (IL) of 1-ethyl-3-methylimidazolium ethyl sulfate (EMIES). The facile ability to engage in hydrogen bonds for poly acrylamide (PAM) segments makes them easily aggregated in EMIES, resulting in the formation of polymer-rich domains. In contrast, poly[2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) (PSBMA) segments combined with EMIES form solvent-rich phase due to their good compatibility. Therefore, interpenetrating phase-separated structure is produced during the polymerization. The polymer-rich phase can dissipate energy and provide high strength, while the solvent-rich phase enables the ionogel with large stretchability. Besides, the zwitterionic groups on PSBMA can provide separate and continuous ion conductive pathways, facilitating the ion transport. Attributing to the synergy of phase separation and zwitterionic feature, the resulting ionogel presents balanced mechanical and electrical properties with high toughness of 2.7 MJ/m3 and ion conductivity of 1.3 mS/cm, as well as desirable self-healing ability. The resulting PSBMA/PAAm ionogel demonstrated excellent performance as a temperature and strain sensor. Remarkably, the ionogel possessed outstanding shape-memory property, making the ionogel can fix on the human joint or object with nonzero Gaussian curvature and maintains the sensing functions. Therefore, the morphing ionogel based sensor displays huge versatilities and potentials on detecting the signals variations for the objects with sophisticated geometries.\",\"PeriodicalId\":82,\"journal\":{\"name\":\"Journal of Materials Chemistry A\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":10.7000,\"publicationDate\":\"2024-10-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry A\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1039/d4ta04228j\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4ta04228j","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Microphase separation induced polyzwitterionic ionogel with tough, highly conductive, self-healing and shape-memory properties for wearable electrical devices
Ionogels have aroused much attention due to their unique advantages for constructing wearable devices. However, integrating the properties of strong toughness, high ion conductivity, self-healing and shape-memory into one ionogel is still challenging. Herein, we develop a polyzwitterionic ionogel through the copolymerization of zwitterionic [2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) (SBMA) and acrylamide (AAm) in ionic liquid (IL) of 1-ethyl-3-methylimidazolium ethyl sulfate (EMIES). The facile ability to engage in hydrogen bonds for poly acrylamide (PAM) segments makes them easily aggregated in EMIES, resulting in the formation of polymer-rich domains. In contrast, poly[2-(methacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) (PSBMA) segments combined with EMIES form solvent-rich phase due to their good compatibility. Therefore, interpenetrating phase-separated structure is produced during the polymerization. The polymer-rich phase can dissipate energy and provide high strength, while the solvent-rich phase enables the ionogel with large stretchability. Besides, the zwitterionic groups on PSBMA can provide separate and continuous ion conductive pathways, facilitating the ion transport. Attributing to the synergy of phase separation and zwitterionic feature, the resulting ionogel presents balanced mechanical and electrical properties with high toughness of 2.7 MJ/m3 and ion conductivity of 1.3 mS/cm, as well as desirable self-healing ability. The resulting PSBMA/PAAm ionogel demonstrated excellent performance as a temperature and strain sensor. Remarkably, the ionogel possessed outstanding shape-memory property, making the ionogel can fix on the human joint or object with nonzero Gaussian curvature and maintains the sensing functions. Therefore, the morphing ionogel based sensor displays huge versatilities and potentials on detecting the signals variations for the objects with sophisticated geometries.
期刊介绍:
The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.