Nanoceria Facilitates the Synthesis of Poly(o-phenylenediamine) with pH-Tunable Morphology, Conductivity, and Photoluminescent Properties

Abstract

Poly(ortho-phenylene diamine) synthesis enabled by the catalytic oxidase-like activity of nanoceria was accomplished for applications in electronics, medicine and biotechnology. The polymer shows unique morphology, conductivity and photoluminescence based on pH of the solution during synthesis. The various poly(ortho-phenylene diamine) preparations were characterized by UV-visible spectroscopy, scanning electron microscopy, fluorescence spectroscopy, fluorescence microscopy, high pressure liquid chromatography and cyclic voltammetry. Poly(ortho-phenylene diamine) synthesized at pH 1.0 by nanoceria was selected to be extensively studied based on the fast synthetic kinetics and the resulting conductive and photoluminiscent properties for various applications.

Novel Co MOF with Ionic Liquid Comprised Portable Molecularly Imprinted Polymer-Based Electrochemical Sensor for the Point-of-Care Detection of a Breast Cancer Biomarker

“…4c). 44 After the template molecule was eluted, the contact angle further increased to 116.4°(Fig. 4d), because the removal of the template molecule would leave imprinted holes, which would significantly weaken the hydrophilicity of the modified electrode.…”

Preparation of poly( o ‐phenylenediamine) nanoparticles with hydrolysed PEO 45 ‐ b ‐P t BA 35 as template and its electrochemical properties

“…Compared to the well‐studied conducting polymers, such as polyaniline (PANI), polyacetylene (PA), polypyrrole (PPY) and polythiophene (PTH) [6], poly ( o ‐phenylenediamine) (P o PD) has more advantages in post‐modification and construction of one‐dimensional nanostructures due to its many active amines and imines [7–13]. At present, P o PD is mainly prepared through electrochemical or chemical oxidation methods [14–18]. In order to prepare to conduct polymer nanoparticles, including P o PD, Yin and Zheng [19] synthesised conducting polymer nanoparticles with adjustable morphology and good reproducibility, environmentally friendly with low‐cost, which was suitable for mass production.…”