Hydrolytic Degradation Studies on Poly(Phosphate Ester)s

Narendran, N and Kishore, K (2002) Hydrolytic Degradation Studies on Poly(Phosphate Ester)s. In: Journal of Applied Polymer Science, 87 (4). pp. 626-631.

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Abstract

Eight poly(phosphate ester)s comprising five homopolymers (polymers I–V), two copolymers (polymers VI and VII), and one terpolymer (polymer VIII) were synthesized by interfacial polycondensation of phenyl phosphorodichloridate with various bisphenols. The polymers were characterized by spectroscopic techniques. The copolymer and terpolymer ratios were determined by $^1H-NMR$ spectroscopy.The molecular weights of the polymers were determined by end-group analysis using $^{31}P-NMR$ spectroscopy. Accelerated hydrolytic degradation studies under alkali-catalyzed conditions showed that the polymer from biphenol (polymer IV) is the most stable and the polymer from thiodiphenol (polymer V) is the least stable. The products of hydrolytic degradation were analyzed and a suitable mechanism for the degradation of the polymers proposed.

Item Type:	Journal Article
Publication:	Journal of Applied Polymer Science
Publisher:	Wiley
Additional Information:	Copyright of this article belongs to Wiley.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	25 Sep 2007
Last Modified:	19 Sep 2010 04:39
URI:	http://eprints.iisc.ac.in/id/eprint/11884

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