Fabrication and excellent electroresponsive properties of ideal PMMA@BaTiO₃ composite particles

Abstract

A series of core–shell-structured poly(methylmethacrylate)@BaTiO3 (PMMA@BT) composite particles were constructed via the self-assembly of BT nanoparticles on the surfaces of PMMA cores through the covalent bonding of siloxane groups at room temperature.

Electrospun nano-barium titanate/polycaprolactone composite coatings on titanium and Ti13Nb13Zr alloy

“…In this study, a water contact angle test was performed on commercially pure titanium (CpTi) and Ti13Nb13Zr alloy samples coated with a composite material made of 18% polycaprolactone (PCL) and variable concentrations of nano-barium titanate (9, 18, and 36% w/w). The surfaces of the PCL/BT composite particles were between hydrophobic (PCL) and super hydrophilic (BaTiO 3 ), 70 and the surface hydrophilicity steadily increased with BaTiO 3 concentration which agreed with the results of Liu et al in 2019, 71 and contradicts previous studies that reported water contact angles above 100 when different concentrations of nano-hydroxyapatite were mixed with PCL using different techniques and solvents. 72 However, this finding agrees with studies on zirconia implants that reported decreased water contact angle with increased ceramic material in the polymer coating.…”

Dual crosslinked PMMA/BaTiO3 polymer nanocomposite dielectrics for flexible film capacitors

“…10 49,50 m-BT nanoparticles exhibited a similar crystal structure, while the intensity of characteristic diffraction peaks decreased slightly, which was due to the phosphate coupling agent. 51,52 The amorphous PMMA had a broad characteristic peak, and the maximum absorption peak was at 2y B 15.51. 53 PMMA-BT3 nanocomposites mainly showed the amorphous phase of the polymer, and the characteristic diffraction peaks of nanoparticles were suppressed by the coated polymer on the nanoparticles.…”

MoS2-functionalized conductive carbon heterostructure embedded with ferroelectric polymers for bipolar memristive applications

“…The surface morphology of pristine MoS 2 displays nanoflakes with irregular shapes and sizes reported previously. The surface morphology of PMMA film (figure S3(a)) shows elongated particles with different shapes and sizes covering the substrate [49]. In contrast, the morphology of PVDF displays nearly spherical-shaped particles with different diameters (figure S3(b)).…”