Oxygen gas permeability in water and the properties of poly(organophosphazene) films
[NP(NR2)(NHR)]n and [NP(NR2) (NHR)1−x (OCH2CH2COOCH = CH2)x]n type polymers were prepared by the reaction of (NPCl2)n with various secondary or primary amines and 2-hydroxyethylacrylate. Membranes were prepared by casting, the mixing mill technique and ultraviolet radiation. The oxygen gas permeability of the membranes and the mechanical properties of the membranes were determined using a film oxygen gas permeater and an Instron tester. It was found that [NP(Di-n-hexylamine) (n-butylamine)]n had the highest oxygen gas permeability value; Dk = 116×10−11 cm3 ml cm−2s−1 mm Hg−1. Also, it was found that the oxygen gas permeability of poly (aminophosphazenes) was not directly related to the dielectric constant and mechanical properties of the membranes in wet conditions (water).
KeywordsRadiation Polymer Permeability Mechanical Property Dielectric Constant
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