The crystal structure of the nylon-6 α form has been established on the basis of wide-angle X-ray diffraction data analysis. We have believed it for the past 70 years. However, the combination of X-ray and neutron diffraction data has required us to introduce the statistical disorderliness to the chain-packing mode as well as revise the space group to that of a higher symmetry. The refined crystal structure makes it possible to perform a more reliable quantitative analysis of the structure‒property relationship of the α form.
- Kohji Tashiro
- Kazuo Kurihara
- Terutoshi Sakakura
