Citation: Khalil Faghihi. Synthesis and characterization of new polyesters based on 2,5-bis[(4-chloro carboxyanilino) carbonyl] pyridine and aromatic diols[J]. Chinese Chemical Letters, ;2010, 21(1): 13-17. doi: 10.1016/j.cclet.2009.08.002 shu

Synthesis and characterization of new polyesters based on 2,5-bis[(4-chloro carboxyanilino) carbonyl] pyridine and aromatic diols

Khalil Faghihi

Polymer Research Laboratory, Department of Chemistry, Faculty of Science, Islamic Azad University, Branch Arak, Arak, Iran

Received Date: 30 March 2009

Six new polyesters 7a-f were synthesized through the solution polycondensation reaction of diacid chloride 5 with six aromatic diols 6a-f in N,N-dimethyl acetamide (DMAc) as solvent in the presence of pyridine as base. The polycondensation reaction produced a series of novel polyester containing pyridyl moiety in the main chain in high yields with inherent viscosities between 0.35 and 0.54 dL/g. The resulted polymers were fully characterized by means of FT-IR spectroscopy, elemental analyses, inherent viscosity and solubility tests. Thermal properties of these polymers were investigated by using thermal gravimetric analysis (TGA) and differentional thermal gravimetric (DTG). The glass-transition temperatures of these polyesters were recorded between 130 and 170℃ by differential scanning calorimetry (DSC) and the 10% weight loss temperatures were ranging from 390 to 450℃ under nitrogen.
- High-performance polymers,
- Polyesters,
- Pyridyl moiety,
- Aromatic diols
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