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Polymerization of caprolactam. Part IV. Stannic chloride ‐ caprolactam complex

Allan J. Amass, James N Hay

Abstract

Abstract SnCl4 forms a 1:2 molar complex with caprolactam, and the role of this complex in initiating the polymerization of caprolactam has been studied. At the temperature of polymerization, the complex decomposes with the evolution of two moles of HCl per mole of complex. Direct initiation by the complex itself is considered not to be important as it was not found to have strong BRØNSTED acid properties, while the polymerization has the characteristics of initiation by a strong acid. The evolved HCl initiates the polymerization.

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Available abstract

Key concepts: Caprolactam, Polymerization, Molar ratio, Polymer chemistry, Chemistry, Chloride, Catalysis, Organic chemistry