Synthesis and Relaxation Properties of bis(5‐Hydroxypenthyl)Phthalate ‐ the Model Oligoester to Study the Relaxation Properties of Polyesters

• DOI: 10.1002/masy.200750147
• Publication Date: 2007-02-21T12:39:34Z
• Authors: Wiesław W. Sułkowski; Sławomir Maślanka; Danuta Pentak; Agnieszka Wolińska; Henryk Janeczek; Marian Paluch; Anna Sułkowska
• Keywords: Phthalic anhydride

Abstract The description of polymer relaxation proprieties is the way to characterize influence structure on its useful stability and resistance. To perform physicochemical profiles polymers synthesis investigation model compounds was required. instrumental methods such as NMR, FTIR, dielectric spectroscopy were used. results experiments allowed us improve technology processes extension range their usage. Moreover obtained more stable resistant degradation. acquire profile properties linear, hyperbranched dendrite unsaturated polyester resins, oligoesters performed. Pentane‐1,5‐diol phthalic anhydride used substrate process. structures compound confirmed by elemental analysis 1 H NMR FTIR spectroscopy. Measurements also done. determination α , β ′ for allow describe practical commercial compounds. relation process may facilitate interpretation dependence between polyesters molecular structure.