Synthesis and Characterization of Novel Poly(sulfoxide-urethane)s from 2,2'-Sulfoxidebis(4-methyl phenol) with Various Diisocyanates
作者： Abbas Shockravi , Fariborz Atabaki , Shadpour Mallakpour , Ahmad Banihashemi
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摘要: A series of novel poly(sulfoxide-urethane)s (PSUs) with enhanced thermal stability and good solubility were prepared by two different processes from 2,2' -sulfoxide bis(4-methyl phenol) commercially available diisocyanates. In the first process PSUa-d solution polymerization in dry N,N-dimethylacetamide (DMAc) under gradual heating. second process, PSU1-4 synthesized reflux conditions. The resulting polymers exhibited inherent viscosities range 0.19—1.10 dL g-1 0.13—0.79 g -1 for PSU1-4, respectively. All characterized Fourier transform infra-red spectroscopy elemental analyses. PSUs a variety polar solvents. glass transition temperatures as determined differential scanning calorimetry (DSC) 154—2003C. 10% weight loss PSU a-d dynamic thermogravimetric analysis found to be ran...
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