High Performance Materials Based on Polyamides: Synthesis, Characterization and Potential Applications

Abstract

Six series of terpolyamides having iso- propylidene and hexafluoroisopropylidene linkages in the molecular structure of polymer chain were synthesized successfully by combining aromatic and aliphatic diamine with three acid dichlorides. The aromatic diamines used were 2,2'-bis[4,4'-(aminophenoxy)phenyl]propane and 2,2'-bis[4,4'- (aminophenoxy)phenyl] hexaflouropropane whereas the acid dichlorides used were terephthalyol dichloride, isophthalyol dichloride and 1,1'-ferrocene dicarboxylic acid chloride. Thirty different grades of polymers were obtained via polycondensation method by varying the concentration of aliphatic diamine i.e. 1,6-hexanediamine. The effect of its subsequent increase in concentration was studied on the properties of resulting polyamides. All the synthesized materials were characterized by spectroscopic techniques including FT-IR and NMR , X-ray diffraction analysis, inherent viscosity, solubility, DSC and TGA. As well as CO 2 Adsorption activity was performed on the synthesized polymers. It was observed that fluoro polymers showed more CO 2 adsorption activity than non-flouro polymers and among fluoro polymers the ferrocene-based flouro polymers had more CO 2 capture activity than other organic analogues.