Microstructural behaviors of polyaniline/CB Composites by SAXS

Abstract

Polyaniline doped with dodecylbenzene sulfonic acid and conductive carbon black (PAn.DBSA/ CB) hybrid materials have been prepared by in situ polymerization. The electrical resistivity of the PAn/CB was measured as a function of CB. The minimum resistivity was noticed for the composites with 25 wt % of CB as compared to other systems. Small angle x-ray diffraction data was used to characterize the molecular arrangements of these composites. The refinement parameters such as periodicity (L), phase lengths (<Y> and <Z>), phase ratio (<Y>/<Z>), and probability distribution of phases [c Z (crystalline), c Y (amorphous)] for PAn, CB, and PAn/CB composites have been measured by SAXS data. It was observed that there is decrease in the crystallinity with increase in CB content in the composites.

Electrospun gelatin/nylon‐6 composite nanofibers for biomedical applications

“…when gelatin was blended with cellulose. 20 Furthermore, our previous report also shows a similar trend of increased maximum thermal degradation temperature of cellulose acetate and poly(butyl acrylate) in their composite fibers. 21 This interaction at the molecular level was further evaluated using FTIR spectra.…”

“…The shifting was highest in the M1 mat and further increase of the gelatin concentration shifted this value towards low temperature, which was still greater than that of pristine nylon-6. Furthermore, at 10 wt% gelatin concentration there was no peak for gelatin decomposition, but in the 30 wt% mat (M3) the gelatin decomposition temperature was clearly seen at 347 • C. Moreover, this thermal degradation temperature of gelatin is greater than the reported value, 20 which is an indication of good incorporation of gelatin with nylon-6 at the molecular level. The possible interaction of gelatin with nylon-6 might be by means of hydrogen bonding because both gelatin and nylon-6 have functionalities for formation of intermolecular hydrogen bonds.…”

Preparo de nanocompósitos maghemita e polianilina assistido por ultrassom

“…Entre os polímeros condutores, a polianilina [1] é um material investigado por diversos grupos no Brasil e no exterior que merece grande destaque devido ao baixo custo, facilidade de preparo, boa estabilidade ao ambiente, além de boa condutividade elétrica [2][3][4][5][6][7] . Além disso, a PAni pode se comportar como um polímero intrinsecamente magnético [8] e suas propriedades magnéticas são frequentemente melhoradas de modo extrínseco, via inserção de partículas magnéticas [9][10][11] na matriz condutora.…”

Geopolymer Microparticles as Up‐and‐Coming H2S Sorbers

“…Nowadays, the search for high‐performance, environmentally friendly, and low‐cost materials is constantly advancing. [ 7–114 ] According to Google Scholar, during the last decade (2010–2020), 1310000 articles were published in the area of high‐performance materials. They include high‐performance materials produced with polymers, with 12,5000 articles registered.…”