Ebrahim Abouzari-Lotf - Sulfide and sulfoxide based poly(ether-amide)s: Synthesis and characterization

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      Publication Details (including relevant citation   information):

      Shockravi, A., Mehdipour-Ataei, S., Abouzari-Lotf, E., Yousefi,   A. 42 (1) 133-139

      Abstract: Two new diacid monomers, 2,2′-sulfide   bis(4-methyl phenoxy acetic acid) and 2,2′-sulfoxide bis(4-methyl   phenoxy acetic acid) were successfully synthesized by refluxing   the 2,2′-sulfide bis(4-methyl phenol) and 2,2′-sulfoxide   bis(4-methyl phenol) with chloroacetonitrile in the presence of   potassium carbonate, and subsequent basic reduction. Two novel   series of poly(sulfide-ether-amide)s and   poly(sulfoxide-ether-amide)s with aliphatic units in the main   chain were prepared from diacids with various diamines. The   polyamides were obtained in quantitative yields and their   inherent viscosities were in the range of 0.43-0.89 dl g-1 at a   concentration of 0.5 g dl-1 in N,N-dimethylacetamide (DMAc)   solvent at 25 °C. They showed good thermal stability. The   temperature for 10% weight loss in argon atmosphere was in the   range of 350-415 °C. The polymers showed glass transition   temperatures between 228 and 261 °C. Almost all of the polyamides   were readily soluble in a variety of polar solvents such as   N-methyl-2-pyrrolidone (NMP) and dimethyl sulfoxide (DMSO). ©   2005 Elsevier Ltd. All rights reserved.

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