Synthesis and characterization of polyesters containing sulphide, sulphone or carbonyl groups in their backbones

✍ Scribed by K. Abraham Joseph; M. Srinivasan

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 306 KB
• Volume: 29
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(93)90259-i

✦ Synopsis

Novel polyesters containing sulphide, sulphone and carbonyl groups are reported. Three diacids were prepared through several steps from 1,4-bis(p-phenylthio)benzene, bis(p-phenylthio)-diphenyl sulphone and bis(p-phenylthio)-benzophenone. Three model diesters (MDE-I,2,3) were prepared. The model compounds and the polyesters were obtained in high yields by direct polycondensation of acids with some aromatic diols in thionyl chloride and pyridine system at 80-85 °. All the polyesters were characterized by spectral, analytical and thermal methods; the morphology (XRD), solution viscosity, density and solubility were also studied.