Incorporation of palladium nanoparticles into aromatic polyamide/clay nanocomposites through facile dry route

Abstract

Palladium nanoparticles were incorporated into polyamide clay nanocomposites using two step synthetic strategies. Primary step involved the formation of aromatic polyamide/DDA MMT nanocompos ites using solution interaction approach, followed by incorporation of palladium nanoparticles in the subse quent step using simple dry process. The resulting materials were characterized using X ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and transmission elec tron microscopy (TEM). XRD and TEM results supported the formation of exfoliated nanocomposites dis playing fine dispersion of clay as well as uniform distribution of Pd 0 nanoparticles into the polyamide clay nanocomposites. Morphological studies revealed that particle size of Pd 0 nanoparticles were in the range 1-4 nm. Thermal stability significantly amplified upon the formation of polyamide/clay nanocomposite as compared to pure polymer. Furthermore, this thermal stability was augmented by the incorporation of Pd 0 nanoparticles in the clay nanocomposites. Glass transition temperatures were also enhanced considerably upon the introduction of Pd 0 nanoparticles in the clay nanocomposites.

Electrospun Oxygen Scavenging Films of Poly(3-hydroxybutyrate) Containing Palladium Nanoparticles for Active Packaging Applications

“…In both PHB films, very small nanoparticles of approximately 5 ± 2 nm can be seen, being homogeneously dispersed along the biopolymer matrix. The present results are in agreement with the results showed by Shaukat et al [ 27 ], where PdNPs were incorporated into polyamide 6 (PA6)/clay nanocomposites and the nanoparticles were largely separated from each other and oriented in all possible directions in the polymer matrix. However, due to the absence of surfactant, some particles still agglomerated into clusters of bigger sizes that increased at the PA6 interfaces with the nanoclays.…”

Incorporation and distribution of noble metal atoms in polyacrylonitrile colloidal particles using different polymerization strategies

“…inorganic nanoparticles dispersed inside colloidal polymer particles) overcome many disadvantages such as cytotoxicity resulting from metal ions leaching and colloidal stability issues (less aggregation than QDs in aqueous media). 29,30 Incorporating nano-scaled inorganic entities, usually below 10 nm, in polymer colloids has gained an increased interest since this permits very remarkable improvements of the material properties, from thermal to mechanical [31][32][33] to the catalytic activity [34][35][36] . For example, the thermal resistance of coating was increased by embedding nanosilica particles of 7 nm in 150 nm copolymer particles made from methyl methacrylate, acrylic acid and butyl acrylate via batch emulsion polymerization 33 .…”