Zahra Rafiee - Department of Chemistry, Yasouj University, Yasouj 75914-353, I. R. Iran.
Shadpour Mallakpour - Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, I. R. Iran.

Aromatic polyamides (aramids) have been recognized for high temperature stability, excellent mechanical strength and good chemical resistance [1,2]. Soluble or thermoplastic aramidsmay open applications in films, separation membranes, coatings, polymer blends, and composites. However, thetechnological. applications of most of these polymers are limited associated with infusibility and insolubility, which were caused by the highly regular and rigid polymerbackbones and the formation of intermolecular hydrogen bonding, resulting in their poor processability. Therefore,numerous efforts have been made to improve their processability by structural modification. The incorporation of pendent bulky, packing-disruptive groups along the polymerbackbone outcomes in a less ordered polymer matrix, hence increasing the solubility characteristics, while other advantageous properties are retained [3-5].