Synthesis and Characterization of Colored Poly(Urethane-Urea)

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

Acknowledgments

The authors acknowledge the Atul Products Ltd. ATUL, for providing chemicals and Garda Chemicals, Panoli GIDC, Ankleswer, for providing the thermal studies of the oligomers. The authors also thank the South Gujarat University, Surat for providing the working facility.