Bolaamphiphile-based Supramolecular Self-assemblies:Construction And Application In Flexible Electronics

A series of supramolecular assemblies based on bolaamphiphile EDH were constructed and a novel hierarchical assembly strategy was designed.The conductivity of the selfassembled conductive supramolecular hydrogel and the hierarchically assembled supramolecular fiber was carefully studied.By introducing the stimuli-responsive properties of supramolecular materials into electronic materials,we enriched the functions of EDH-based flexible electronics,which also pushes forward the applications of supramolecular materials in electronics.In Chapter 2,the lithium ion-triggered gelation strategy was designed to develop conductive supramolecular hydrogel.In this hydrogel,lithium ions participated in constructing supramolecular assemblies and functioned as charge carriers to impart ionic conductivity.With the polymer assistance method,the mechanical accommodation of this hydrogel was improved sharply,meeting the mechanical requirements of daily use of touch panels.Besides,a surface capacitive touch panel was developed based on this hydrogel,which performed real-time sensing and reliable touch locating ability.Remarkably,this touch panel can be reconfigured into 1D,2D,and 3D device structures under ambient conditions dominated by thixotropic property.In Chapter 3,an interface-assisted hierarchical assembly strategy was developed to construct composite supramolecular fibers.By dispersing different one-dimensional supramolecular assemblies in two immiscible solvents,the interfaces of the system resulted in the assemblies aligning in order during pulling in a spinning-like approach.Besides,this supramolecular fiber can load various functions including conductivity and humidity sensibility by doping functional materials into the system.