SOLUBLE AND PROCESSABLE HEAT RESISTANT POLY(ETHER-AMIDE)S CONTAINING CYCLOPENTYLIDENE MOIETY

Abstract

A new series of poly(ether-amide)s were synthesized by using direct Yamazaki’s phosphorylative polycondensation of novel diacid 1,1-bis[4-(4-carboxy methyl phenoxy) phenyl] cyclopentane(BCMPP) with various aromatic diamines such as ODA, MDA, p-PDA, SDA etc. These novel polymers were characterized by FT-IR spectroscopy, solubility, inherent viscosity,thermal analysis and XRD studies. Inherent viscosities of these polymers were in the range 0.20 to 0.40 dL/g indicating moderate molecular weight built-up. These polymers exhibited excellent solubility in various polar aprotic solvents such as NMP, DMSO, DMAc, DMF etc. These polymers were also soluble in pyridine and Conc. H2SO4. The X-Ray diffraction patterns of polymers revealed that introduction of cardo moiety containing ether linkage would disturb the chain regularity and packing, leading to amorphous and semicrystalline nature. Thermal analysis by TGA disclosed excellent thermal stability of polymers. The structure-property correlation among these poly(ether-amide)s was studied, in view of these polymer’s potential applications as processable high temperature resistance materials.