Over the past decade, many applications were intended for filtration by membrane technology especially the thin film composite (TFC) membranes. In advanced developments of thin film membranes, an attempt was made to spread a new generation of membranes called thin film nano composite (TFN) membranes. However, in the last generation of TFNs, an ultrathin selective film of nanoparticles is coated...

Front Cover: Article 2200737 by Dennis W. Smith, Jr. and co-workers highlights the versatile scalable electrophilic synthesis of a forgotten semi-fluorinated polyaryl ether from diphenyl hexafluoroacetone hydrate catalyzed triflic acid. Despite presence 6F linkages, anomalous crystallinity is observed for very first time this polymer. This interfacial aromatic polymerization applicable to other...

ABSTRACT Stearic acid was encapsulated successfully with SiO2 shell in nanoscale by situ emulsion interfacial hydrolysis and poly-condensation techniques. The influence of using different mixing techniques on these investigated. Morphologic, thermal crystal structure analysis results show that the ultrasonic technique is suggested for synthesis nanocapsules. Ultrasonic vibrations lead to more h...

The synthesis of nylon 4,T from tetramethylenediamine and a terephthalic acid derivative was studied in a two stepprocess: prepolymerization, followed by postcondensation in the solid state (4 h, m C ) . The prepolymers were prepared by the nylon salt method, ester polymerization method, interfacial method, and a low temperature solution method. A maximum qinh of 1.52 was obtained. From a solut...

We successfully obtained a high-bandwidth (1 GHz km) and low-loss (90 dB/km at 0.572 µm of wavelength) graded-index polymer optical fiber by using the interfacial-gel polymerization technique, in which we used an unreactive component to obtain the quadratic refractive-index distribution. This high-bandwidth graded-index polymer optical fiber makes it possible to transmit a high-speed optical si...