Interphase crystal structure of polyamide 6 on carbon materials revealed by grazing incidence X-ray diffraction with synchrotron radiation. (5th August 2016)

• Record Type: Journal Article
• Authors: Kobayashi, Daigo; Takahara, Atsushi
• Is Part Of: Polymer. Volume 97(2016)
• Page Start: 174
• Page End: 178
• Publication Date: 2016-08-05
• Subjects: Polymers -- Periodicals; Polymerization -- Periodicals; Polymères -- Périodiques; Polymérisation -- Périodiques; 547.7
• DOI: 10.1016/j.polymer.2016.05.028
• Languages: English
• ISSNs: 0032-3861

Abstract

Abstract: The orientation of polyamide6 (PA6) crystallites on the surface of carbon materials was investigated through grazing incidence wide-angle X-ray diffraction (GIWAXD) on the BL46XU beam line at SPring-8. PA6 films on graphite and amorphous carbon were implemented to model the interphase of the composite with PA6 and the carbon materials. Only the α crystal was observed in the in-plane GIWAXD profile of PA6 on a graphite plate. Further, it was found that the highly oriented graphite structure induced the α crystalline form of PA6 and made the methylene chains align/orient themselves epitaxially. Graphical abstract: Highlights: The structure of PA6 at the interphase of carbon materials was investigated through GIWAXD. Only the α crystal was observed in the in-plane GIWAXD profile of PA6 on a graphite. Matching of lattice spacing and surface free energy of PA6 and carbon materials induces epitaxial crystal growth of PA6.