Citation: Hossein Nasr Isfahani, Khalil Faghihi. New thermally stable polyesters based on 2,5-pyridinedicarbonyl dichloride and aromatic diols:Synthesis and characterization[J]. Chinese Chemical Letters, ;2009, 20(7): 885-888. doi: 10.1016/j.cclet.2009.01.014 shu

New thermally stable polyesters based on 2,5-pyridinedicarbonyl dichloride and aromatic diols:Synthesis and characterization

Hossein Nasr Isfahani ^a, ,
Khalil Faghihi ^b

a Faculty of Chemistry, Shahrood University of Technology, Shahrood, Iran;
b Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, Arak University, Arak 38156, Iran

Received Date: 2 December 2008

Six new thermally stable polyesters (4a-f) were synthesized through the solution polycondensation reaction of 2,5-pyridine dicarbonyldichloride (2) with six aromatic diols in N,N'-dimethyl acetamide (DMAc) solution and in the presence of pyridine as a base. The polycondensation reactions produce a series of new polyesters (4a-f) in high yields, and inherent viscosity between 0.30 and 0.55 dL/g. The resulting polyesters were characterized by elemental analysis, viscosity measurements, thermal gravimetric analysis (TGA and DTG), solubility test, Fourier transform infrared (FT-IR) spectroscopy and gel permeation chromatography (GPC).
- High performance polymers,
- Polyesters,
- Pyridyl moiety
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