Mechanical properties and toughening mechanism of nylon 1212 toughened by new aromatic sulfonamide;

A new tripodal aryl amide type ligand,1,1,1-tris{[(2′-benzylaminoformyl)phenoxyl]methyl}-p-toluene sulfonyl aminomethane,and its Eu(NO_3)_3,Tb(NO_3)_3 complexes have been synthesized.

The preparation of aryl amides by selective oxidation of aryl nitriles using sodium tungstate as catalyst and sodium percarbonate or sodium carbonate-hydrogen peroxide as the oxidant in a methanol and water solution was studied.

Coordination polymer {[La(NO3)3]2·L3}n {L= 1,4-bis{[2'-(benzylaminocarbonyl)-phenoxyl]-methyl} benzene has been synthesized by the reaction of an aryl amide type bis-monodentate ligand and La(NO3)3·6H2O, and the crystal structure of this complex has been characterized by X-ray diffraction analysis.

Production technology and application of aromatic polyamide fibers;

The article summarized the functionalization of aromatic polyamide fibers,including improving the fibers' dyeing property,flame-retardancy,conductivity,antistatic property,light and thermal stability,anti-chemical ability,organosolvent resistance and the producing of nonionic-aromatic polyamide fibers,high fatigue durability,potential retractable PMIA,coloration in-situ aromatic polyamide fibers.

PPTA(Polyparaphenylene terephthalamide)paper is widely used as substrates of high-performance PCB(printing circuit board).

Poly(m-phenylene isophthalamine)PMIA and poly(p-phenylene terphthalamine)PPTA fibers are the typical representatives of the high-temperature resistant aramid fibers.