Date of Award

6-1-1992

Degree Type

Thesis

University or Center

Clark Atlanta University(CAU)

Degree Name

M.S.

Department

Chemistry

First Advisor

Professor Malcom B. Polk

Abstract

Two copolyesters were prepared in the melt from terephthalic acid, 1,4- phenylenediacetic acid, 2-chlo~ 1,4-phenylenediacetate and CXCX -diacetoxy-I ,4- phenylene. Neither polymer is observed to exhibit liquid crystalline properties. Polymer I has an inherent viscosity of O.39g/dl while polymer 2 has an inherent viscosity of O.64g/dl. The Thermal properties of both polymers are obtained. Thermogravimetric analysis result indicate that polymer I starn to loose weight at 2750 C, while polymer 2 which is more thermally stable only losses less than 5% of it's weight at 3500 C. Both polymers were characterized by FT-IR, lH NMR and 13c NMR, POM, DSC, TGA and viscosity.

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