Microstructures of conducting polymers: Patterning and actuation study

Abstract

The conducting polymers exhibit electrochemically driven expansion and shrinkage due to ingress and egress of dopant ions in response to potential applied. In this paper, we report on patterning of microdots and microsquares of polypyrrole (PPy), poly(3,4-ethylenedioxythiophene) (PEDOT) and poly (3,3-dihexyl-3-4-dihydro-2H-thieno[3,4b][1,4]-dioxepine PProDOT(Hx) 2 and their behaviour under voltage change. Stainless steel mesh was used to deposit microdots and inkjet-printed cellulose girds were used to deposit microsqures of the conducting polymers on the ITO surface. It was found that PPy showed distinct actuation in the z direction while colour change was prominent in the case of PEDOT and PProDOT(Hx)2. AbstractThe conducting polymers exhibit electrochemically driven expansion and shrinkage due to ingress and egress of dopant ions in response to potential applied. In this paper, we report on patterning of microdots and microsquares of polypyrrole (PPy), poly (3,4-ethylenedioxythiophene) (PEDOT) and poly (3,3-dihexyl-3-4-dihydro-2H-thieno[3,4b][1,4]-dioxepine PProDOT(Hx) 2 and their behaviour under voltage change. Stainless steel mesh was used to deposit microdots and inkjet-printed cellulose girds were used to deposit microsqures of the conducting polymers on the ITO surface. It was found that PPy showed distinct actuation in the z direction while colour change was prominent in the case of PEDOT and PProDOT(Hx) 2 .

Advances and Future Perspectives in 4D Bioprinting

“…Biocompatibility [39] and 3D printing [40] of polyaniline-based materials have been reported. Conductive polymers have also shown actuation under applying voltage [41]. Therefore, hybrid hydrogel-polyaniline materials can potentially be used in 4D bioinks.…”

Conducting interpenetrating polymer network to sense and actuate: Measurements and modeling

“…They are the most promising because of the advantages: low operating voltage, large deformation capabilities, bio-compatibility, ease of manufacturing and integration with micro electro-mechanical system (MEMS). The studies of ECPs including poly(3,4-ethylenedioxythiophene) (PEDOT) [33,34] and polypyrrole (PPy) [35,36] have been proposed. The oxidation or reduction of ECP makes ions exclude or include from the electrolyte for electroneutrality, resulting in the corresponding dimensional change of ECP [37].…”