Abstract
Azo-functionalized polyesters were synthesized via a low temperature solution polycondenstion of 4,4′-bis(4-azo-1-hydroxyphenyl)biphenyl methane (A) with four different diacid chlorides [terephthalyolchloride (T), isophthaloyl chloride (I), trans-azobenzene-4,4′-dicarbonyl chloride (TA) and ferrocenedicarboxylic acid chloride (Fe)]. The synthesized polymers were characterized by FTIR and 1HNMR spectrophotometric techniques and the structural property relation was studied in terms of solubility measurements, WAXRD, bleeding test, viscosities and UV/Visible spectroscopic analysis. Thermal properties were explored by means of thermogravimetric analysis and differential scanning calorimetry. LOI values, calculated by using the Van Krevelen–Hoftyzer equation were found in the range 35–37.8. Conductivity measurements showed that ferrocene based polymer were most conducting material with maximum conductivity 4.56 × 10−4 Scm−1. The material had relative viscosities in range 1.585–1.128 dL/g showing high molecular weights.
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