SEGMENTED POLYURETHANES USING FLUORESCEIN

Segmented Polyurethanes were prepared by chain extending the prepolyme rs based on poly(tetramethylene oxide)glycol and tolylene diisocyanate using fluorescein. The polymers were characterized using FTNMR and FT IR. Thermal stability of the polymers was studied using a thermogravim etric analyzer, and the glass transition temperature of the polymers w as determined using a differential scanning calorimeter. Tensile stren gth and percentage of elongation of these segmented polyurethanes were evaluated using a Universal Testing Machine. (C) 1996 John Wiley & So ns, Inc.