In situ synthesis and characterization of nanosilver/poly(2-acrylamido-2-methylpropanesulfonate sodium) composites via microwave

Abstract

Nanosilver/poly(2-acrylamido-2-methylpropanesulfonate sodium) (nano-Ag/PAMPS) composites were synthesized by a microwave synthesis method. The mechanism of catalytic reduction of Ag ion by atomic nitrogen (from PAMPS) was explored. The composites were characterized by the ultraviolet-visible spectroscopy, x-ray diffractometry, transmission electron microscopy, x-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy, and thermogravimetric analysis (TGA). The results show that Ag nanoparticles (AgNPs) possessed face-centered cubic structure and they were homogeneously dispersed in PAMPS matrix. XPS analysis reveals the interaction between AgNPs and PAMPS matrix. TGA proves that the thermal stability of the pure PAMPS was higher than that of the nano-Ag/PAMPS composites.

Investigation of thermal and mechanical properties of new nitrogen-rich organic based heat stabilizers for poly (vinyl chloride)

“…[18][19][20] Nitrogen-containing compounds such as urea derivatives such as DAU, MAU, and MATU have shown good potential as an organic stabilizer. [21][22][23] These nitrogen-containing organic-based thermal stabilizers indicated an excellent thermal stability for PVC products. 24,25 The thermal stability mechanism of urea derivatives includes inhabitation of the autocatalytic effect of HCl by absorbing released HCl during the degradation of PVC and, after that reacting with PVC chains to avoid the formation of conjugated double bonds.…”

“…Nitrogen-containing compounds such as urea derivatives such as DAU, MAU, and MATU have shown good potential as an organic stabilizer. 21–23…”

On interaction between nano-Cu-Ga and P(AAEM-St) matrix prepared via ultrasonic initiation

“…7 Nano-Cu-Ga alloys/polymer composites have potential applications in the fields of conductive thin film. As we all know, the fabrication principle of nano-alloys/polymer nanocomposites is the interaction between polymeric matrix and metal nanoparticles (NPs), for instance, hydrogen bond, static electricity, charge-transfer, 8,9 and so on. The mutual effect depends on the size and morphology of metal NPs and the structure and property of polymeric matrix.…”