The chemical–physical hybrid cross-linked double network gel poly (acrylamide-co-acrylic acid)/Sodium alginate/Fe3+ (P(AM-co-AA)/SA/Fe3+, simplified as P-gel) was synthesised by free radical polymerisation combined with hydrogen bonding and ion coordination, which in turn compounded styrene–butadiene-styrene (SBS) to prepare P-gel gel/SBS modified asphalt. FT-IR, UV, XRD SEM analyses confirmed ...

in this work, sol-gel processing was used to synthesize the fluorohydroxyapatite (nano-fha, ca10(po4)6(oh)2−xfx) nanopowders. the advantages of the sol-gel method over other methods are precise control of composition, low processing temperature, and better homogeneity. calcium nitrate tetrahydrate, phosphorous pentoxide and tetrabuthylammonium fluoride were used, respectively, as p, ca, and f p...

An aqueous solution of tapioca starch was successfully used as a chelating agent in the sol-gel synthesis Co0.7Me0.3Fe2O4, where Me denotes Co, Mn, Cu, Ni, or Zn. The hysteresis loops all sintered ferrites revealed ferrimagnetic properties. saturation magnetization reduced Co0.7Cu0.3Fe2O4 and Co0.7Ni0.3Fe2O4 because ion substitutions with smaller magnetic moments. Interestingly, exhibited highe...

Objective(s): The current study reports the production and biocompatibility evaluation of a ternary nanocomposite consisting of HA, PLA, and gelatin for biomedical application.Materials and Methods: Hydroxyapatite nanopowder (HA: Ca10(PO4)6(OH)2) was produced by burning the bovine cortical bone within the temperature range of 350-450 oC followed by heating in an oven at 800. Synthesis of the te...

Abstract Boiler ash from palm oil mill contains high SiO2compound. The boiler used in this study was PKS Cikasungka PTPN VIII, Bogor. research objectives were to (i) optimize the conditions of silica synthesis process ash, (ii) analyze content synthesis, (iii) and performance as a moisture absorber. This designed using central composite design (CCD) variables optimized response surface method (...

The solution phase synthesis of N-protected amino acids and peptides has been achieved through the Group-Assisted Purification (GAP) chemistry by avoiding disadvantages of other methods in regard to the difficult scale-up, expenses of solid and soluble polymers, etc. The GAP synthesis can reduce the use of solvents, silica gels, energy and manpower. In addition, the GAP auxiliary can be conveni...