Abstract
An analytical procedure is described for rapid qualitative and quantitative analysis of polyether-based polyurethanes. Polyurethane foams are conventionally the complex reaction product of an isocyanate terminated branched polyether prepolymer extended with water. The polymer is cleaved into the diamine corresponding to the polyether portion of the polymer, by using mixed anhydride reagent. These products are analysed using gas chromatography after separation using liquid-liquid extraction procedure. The procedure is discussed and compared with an earlier reported scheme where the polymer was first fragmented by alkali fusion and the liberated polyether subsequently degraded using mixed anhydride reagent.
Published Version
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