MoO3 Nanobelts Embedded Polypyrrole/SIS Copolymer Blends for Improved Electro-Mechanical Dual Applications

Abstract

This research endeavor aimed to develop thin film blends of polypyrrole (PPy) and poly (styrene-isoprene-styrene) (SIS) with MoO3 as a nanofiller for improved mechanical and electrical properties to widen its scope in the field of mechatronics. This study reports blends of polypyrrole (PPy) and poly (styrene-isoprene-styrene) (SIS) tri-block copolymer showing improved mechanical and electrical attributes while employing MoO3 nanobelts as nanofillers that additionally improves the abovementioned properties in the ensuing nanocomposites. The synthesis of PPy/SIS blends and MoO3/PPy/SIS nanocomposites was well corroborated with XRD, SEM, FTIR, and EDS analysis. Successful blending of PPy was yielded up to 15 w/w% PPy in SIS, as beyond this self-agglomeration of PPy was observed. The results showed a remarkable increase in the conductivity of insulating SIS copolymer from 1.5 × 10−6.1 to 0.343 Scm−1 and tensile strength up to 8.5 MPa with the 15 w/w% PPy/SIS blend. A further enhancement of the properties was recorded by embedding MoO3 nanobelts with varying concentrations of the nanofillers into 15 w/w% PPy/SIS blends. The mechanical strength of the polymeric nanocomposites was enhanced up to 11.4 MPa with an increase in conductivity up to 1.51 Scm−1 for 3 w/w% MoO3/PPy-SIS blends. The resultant product exhibited good potential for electro-mechanical dual applications.

Polypyrrole–Dopamine Nanofiber Light-Trapping Coating for Efficient Solar Vapor Generation

“…The peaks at 1700 and 1735 cm –1 for granular and fibrous PPy–DA, respectively, are due to CO stretching vibration, indicating the carbonyl group . In fibrous and granular structures, the peaks at 2958 and 2924 cm –1 (C–H symmetrical and C–H asymmetrical stretching in the aromatic ring, respectively) also confirm the incorporation of DA into PPy …”

“…The planar, granular, and fibrous structures of the coatings were qualitatively characterized by Fourier-transform infrared (FTIR) spectroscopy in the range from 4000 to 400 cm –1 (Figure a). The PPy characteristic peaks at 1543 and 1174 cm –1 are, respectively, assigned to the CC stretching vibrations and the C–N stretching and bending of the five-membered ring . The transmission band at 904 cm –1 is due to the C–H in-plane vibrations. , The peaks at 1299 cm –1 are due to C–O stretching, indicating that the PPy body was oxidized during synthesis and in the presence of the catechol structure from DA in granular and fibrous PPy–DA structures .…”

Electrospun Nylon Fibers with Integrated Polypyrrole Molecularly Imprinted Polymers for the Detection of Glucose

“…The result of this methodology was agglomerates of PPy spherical nanoparticles, Figure S1. This powder was analyzed through FT-IR, Figure B, confirming the formation of PPy . The obtained PPy was manually ground to form a fine powder, before being suspended in formic acid along with the dissolved nylon 6,6 monomer.…”

Development of Electromagnetic Shielding Material from Conductive Blends of Polyaniline/Polystyrene‐isoprene‐styrene Copolymer

“…Based on the aforementioned studies, it can be anticipated that those limitations of CPs inducing brittleness and the inability to cast alone could be overcome by exploring the development of its various blends and composites. Recently our group synthesized blends PPy with polystyrene‐isoprene‐styrene (SIS) copolymer to enhance the mechanical strength of PPy while making an insulating SIS matrix conductive [26] …”

“…Recently our group synthesized blends PPy with polystyreneisoprene-styrene (SIS) copolymer to enhance the mechanical strength of PPy while making an insulating SIS matrix conductive. [26] This research report reports the synthesis of polymeric blends of polyaniline with an insulating polystyrene-isoprenestyrene (SIS) copolymer to form a flexible film to provide shielding against the X-band of frequencies. The choice of poly (styrene-isoprene-styrene) as a blend with polyaniline is due to the easy processability and other useful properties such as high strength and excellent elasticity of copolymer, while the choice of polyaniline is due to its tuneable conductive properties, low density, low cost, and good environmental stability.…”