In:
Journal of Materials Chemistry C, Royal Society of Chemistry (RSC), Vol. 11, No. 3 ( 2023), p. 1184-1196
Abstract:
The development of hydrophobic ionogels with high stretchability, good recoverability, and excellent stability in widely varying environments is essential for next-generation wearable sensors. Herein, a highly stretchable hydrophobic ionogel was facilely designed and formed by a one-pot polymerization of diacetone acrylamide (DAAM) in a hydrophobic ionic liquid of 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (BMIMTFSI) with a topological structural macro-crosslinker of an acrylate-terminated hyperbranched polyester. The unique deformable covalent crosslinking networks formed by multifunctional hyperbranched macromolecular and reversible noncovalent bond junctions formed by hydrogen bonding endowed the ionogels with high stretchability ( 〉 1000%), good resilience, and excellent durability. These ionogels also showed a special rheological property, good air/underwater self-adhesiveness, excellent optical transparency (90.5%), harsh temperature tolerance (−85 °C to 240 °C), and high ionic conductivity (10 −3 S cm −1 ). Importantly, the hydrophobic ionic liquid BMIMTFSI endowed the ionogels with an excellent humidity-resistance ability and suitable underwater stability. In addition, these ionogels could be used to fabricate long-term durable and stable strain sensors, no matter in air with different humidity environments or in aquatic environments, and also showed superior sensing performance, even under both extremely cold (−50 °C) and hot (200 °C) conditions.
Type of Medium:
Online Resource
ISSN:
2050-7526
,
2050-7534
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2023
detail.hit.zdb_id:
2702245-6
Permalink