Authors: S J Yu S X Wang Z C Tan C Q Liao Y S Li
Publish Date: 2009/06/19
Volume: 97, Issue: 3, Pages: 993-
Abstract
A novel AB2type monomer diethyl 54hydroxyethoxyphenylazoisophthalate for preparing hyperbranched azo polymers HBPAZO was synthesized The monomer obtained was characterized by IR spectra UV–Vis spectra 1H NMR spectrum and C NMR spectrum The TGDTG/DTA curves show that the decomposition of the monomer proceeds in four steps During the secondstep decomposition the mass loss occurs between 4805 K and 5790 K and the phenomena of condensing to HBPAZO for the melted monomer was found So it is inferred that this temperature range is the best for polycondensation of the melted monomer which is very important for synthesizing of HBPAZO
Keywords: