The polyguanamines were prepared by the polymerization of bis[N-(2-anilino-4-chloro-1,3,5-triazine)yl]-4,4’-oxydianiline (Bis(ACT)) with α,ω-alkylene diamines such as 1,12-diaminododecane, 1,10-diaminodecane and 1,8-diaminooctane. NMR analysis Bis(ACT) resulting showed that hydrogen bonds cause between triazine adjacent anilino units. have good solubility in typical organic solvent. Temperature...

The ability of surfactant-like compounds to inhibit the corrosion aluminum in NaCl solution was systematically investigated. basic idea this study scrutinize effect type backbone chain (alkyl and perfluoroalkyl), length (number carbon atoms 7, 10, 17), various anchor groups (carboxylic, thiol, imidazole) presence alkylene benzene spacers between perfluoroalkyl group. To tackle these effects, th...

Poly(ethylene terephthalate) (PET) is known for its various useful characteristics, including applicability in cardiovascular applications, more precisely as synthetic bypass grafts large diameter (? 6 mm) blood vessels. Although it widely used, PET not an optimal material interactive with endothelial cells, which required bypasses to form a complete endothelium. Therefore, this study, poly(alk...

BACKGROUND Pretreatment of lignocellulosic biomass is a prerequisite for effective saccharification to produce fermentable sugars. In this study, "green" solvent systems based on acidified mixtures of glycerol carbonate (GC) and glycerol were used to treat sugarcane bagasse and the roles of each solvent in deconstructing biomass were determined. RESULTS Pretreatment of sugarcane bagasse at 90...

Currently, the 65Mn steel is quenched mainly by oil media. Even though lower cooling rate of compared to water reduces hardness post quenching, deforming and cracking parts are often minimized. On other hand, media also has disadvantage being flammable, creating smoke that adversely affects The poly alkylene glycol (PAG) polymer quenchant commonly used for quenching a variety steels based on it...