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The relationship between onset of polymerization and crystallization for nylon-6 formed from caprolactam has been delineated via differential scanning calorimetry. The effect of initiator and activator concentration on the polymerization and crystallization process was examined. Adipoyl-biscaprolactam was used for the activator so as to produce a slow polymerization. Polymerization followed by crystallization was observed when polymerization temperature, determined from heating the reactive components, was less than the crystallization temperature, determined by cooling the nylon from the melt. Crystallization was not observed for polymerizations at temperatures higher than the corresponding melt crystallization temperature.

Посилання на статтю:

Separation of polymerization and crystallization processes for nylon-6 / D. L. Wilfong* and C. A. Pommerening // Polymer. – 1992. – Vol 33. – P. 3884-3888.

Separation of polymerization and crystallization processes for nylon-6 - Завантажити.