Effect of UV irradiation during synthesis of polypyrrole by a one-step deposition/polymerization process

Abstract

Polypyrrole (PPY) nanofilms were synthesized by a one-step deposition/polymerization process in a vacuum chamber under ultraviolet photon irradiation. To realize the synthesis of PPY films, the authors measured the current through a conducting polymer connected by two electrodes. The nanofilms were characterized by atomic force microscopy and Fourier-transform infrared spectroscopy. A possible mechanism is proposed for the formation of the PPY nanostructure during the photopolymerization.

Nanomaterials From Imogolite: Structure, Properties, and Functional Materials

“…Otherwise, the use of silane as coupling agent appears to be controversial because the moieties remain hydrolytically labile and are totally removed after several days of dialysis [141,142]. Beyond chemisorption, chemical vapor deposition (CVD) [143,144] or -ray irradiation [145,146] have also been considered.…”

Imogolite Nanotubes: A Flexible Nanoplatform with Multipurpose Applications

“…Similar to phosphonates, the carboxylates and sulfonates moieties are reported to strongly interact with the -Al-OH groups of INTs [84], resulting in homogeneous hydrogels exhibiting thixotropic behavior [93], hierarchical ordering [94] and modified optical properties [95]. Grafting of other functional groups have also been reported, using chemisorption [96,97], chemical vapor deposition (CVD) [98,99], or γ-ray irradiation, the latter being used to generate peroxide groups for subsequent monomer polymerization) [100,101].…”

“…As far as nanodevices are concerned, it has been suggested that INT can be used for nanoelectronic applications by altering their insulating behavior through surface modifications [98,99,104]. Hence, thin film INTs have been proposed as field emission electrodes for use as water sensors [165] or electrocatalytic activity [166] (Figure 8a).…”