New Biopolymer Nanocomposite of Starch-Graft Polystyrene/Montmorillonite Clay Prepared Through Emulsion Polymerization Method

Application of response surface methodology for modeling of reactive dye removal from solution using starch‐montmorillonite/polyaniline nanocomposite

“…The XRD pattern of starch showed the characteristic crystalline peaks: the strong peak at 2θ = 17.13°, and medium intensity peaks at 2θ = 15.17°, 19.54°, 22.68°, and 24.04°. And as a final remark, we note that the peak at 2θ = 6.23°, could be considered as a “finger print” for B‐type structure . Pure MMT revealed its characteristic peak at 2θ = 7.03°, which is corresponding to a d ‐spacing of 12.55 A ° (From the diffraction peak d ‐spacing can be determined using Bragg's equation; n λ = 2 d sinθ).…”

“…The stretching vibrations of CAO bonding in CAOAH and CAOAC group in the anhydrous glucose ring were appeared at 1163, 1084, and 988 cm 21 . The characteristic peak of CAOAC ring vibration in starch was located at 765 cm 21 [40]. FTIR spectrum of Na-MMT showed the band at 460 cm 21 due to SiAOASi deformation, the band at 524 cm 21 due to SiAOAAl deformation, the band at 1031 cm 21 due to SiAO stretching, the band at 1633 cm 21 due to OH deformation of H 2 O, the band at 3433 cm 21 is due to OAH stretching of H 2 O, and the band at 3624 cm 21 is due to the stretching mode of OH band in the inner surfaces of Na-MMT [41].The main characteristic absorption bands of pure PANI were observed at 3414 cm 21 (NAH stretching vibration), 1550 cm 21 (C@C stretching of the quinoid ring), 1460 cm 21 (C@C stretching of the benzenoid ring), 1230 and 1286 cm 21 (CAN stretching), and 790 cm 21 (CAH stretching) [42].…”

Design and fabrication of photoactive imidazole-based poly(ether-imide)s and a polyimide/HBP-modified SiO2 composite: toward high heat-resistance, antimicrobial activity and removal of heavy metal ions

“…Nowadays, polymer nanocomposites (PNCs) have received extensive attention in the eld of science and technology, owing to the combination of properties of inorganic nanomaterials and polymeric matrices. [1][2][3] Nano-silica (SiO 2 ) has been widely applied in polymer composites as an amplier thanks to enjoying several desirable properties including environmental compatibility, affordability, non-toxicity, excellent thermal stability, and capability of enhancing the mechanical properties of the polymeric matrix; hence PNCs based on SiO 2 nanollers have sparked huge interest in recent years. [4][5][6] Nonetheless, monotonous distribution and dispersion of nanollers all over the polymer matrix and adequate interaction between the two corresponding phases (matrix and ller) is one of the main requirements when preparing polymeric nanocomposites.…”

Starch‐g‐lactic acid/montmorillonite nanocomposite: Synthesis, characterization and controlled drug release study

“…A major constraint that seriously limits the development of starch‐based nanoparticles is the hydrophilic nature of starches. A good alternative to solve this problem is the grafting of hydrophobic side chains onto the hydrophilic starch backbone . Acetylation is one of the most common methods applied for starch stabilizing.…”