Studies on crystalline forms of nylon 6. II. Crystallization from the melt

✍ Scribed by Kyotani, Mutsumasa ;Mitsuhashi, Shigenobu

• Publisher: Wiley (John Wiley & Sons)
• Year: 1972
• Tongue: English
• Weight: 470 KB
• Volume: 10
• Category: Article
• ISSN: 0449-2978
• DOI: 10.1002/pol.1972.160100807

✦ Synopsis

Abstract

The relative amounts of the α and the γ crystalline forms of nylon 6 obtained from the melt under different crystallization conditions have been studied by an x‐ray diffraction procedure by comparison with a calibration curve obtained from the diffraction of standard samples. The weight fraction of the α form decreases with increasing crystallization temperature and that of the γ form increases. Growth of the α form is predominant in crystallization at 100°C and of the α form at 200°C. The amount of the α form tends to increase on annealing at 200°C for specimens crystallized at any temperature.