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Synthesis and Characterization of Colored Poly(Urethane-Urea) |
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| Abstract: | ABSTRACT Various Poly(urethane-urea)s (PUU)s were prepared by polycondensation of various azo dyes having both amino and hydroxyl group with Toluene 2,4-diisocyanate. The resultant poly(urethane-urea)s were characterized by the elementary analysis, IR spectral, nonaqueous conductometric titration, and thermogravimetry. The electrical conductivity of these oligomers has also been measured at room temperature. |
| Keywords: | poly(urethane-urea)s diisocyanates number average molecular weight IR spectral studies electrical properties |