A possibility of observing the structure forming process in polypropylene crystallization

✍ Scribed by L. I. Bezruk; V. I. Poddubny; Yu. S. Lipatov; V. G. Baranov

• Publisher: John Wiley and Sons
• Year: 1982
• Tongue: English
• Weight: 537 KB
• Volume: 33
• Category: Article
• ISSN: 0323-7648
• DOI: 10.1002/actp.1982.010330705

✦ Synopsis

Abstract

The existence of the specific metastable phase made it possible to carry out multistage electron microscopic investigation of the supermolecular structure formation in the crystallization of polypropylene in the oriented state. Comparison with the data of electron diffraction yielded a direct evidence of the fact that the formation of structural units of the supermolecular organization of crystalline PP, i.e. fibrils and lamellae, occurs in the stage of orientation, and crystallization itself only fixes these structures.