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Micro‐ and nanomorphologies of isotactic polystyrene revealed by PLM, AFM, and TEM
Author(s) -
Liu Tianxi,
Ma Kuixiang,
Liu Zhehui,
He Chaobin,
Chung TaiShung
Publication year - 2002
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.10988
Subject(s) - transmission electron microscopy , materials science , polystyrene , lamellar structure , atomic force microscopy , tacticity , isothermal process , electron microscope , crystallography , lamella (surface anatomy) , composite material , chemical engineering , nanotechnology , polymer , optics , chemistry , polymerization , thermodynamics , physics , engineering
The spherulitic and lamellar morphologies of isotactic polystyrene (iPS) isothermally crystallized from the glassy state were investigated by polarized light microscopy (PLM), atomic force microscopy (AFM), and transmission electron microscopy (TEM). The AFM phase images and TEM bright‐field electron micrographs revealed that the iPS spherulites consist of a number of dominant edge‐on lamellae which continuously grow outward by splaying and branching. By partial melting, the less perfect subsidiary lamellae, which are formed within the framework of the dominant ones due to the growth in restricted spaces and possess lower thermal stability than that of the dominant ones, were directly observed by TEM. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 86: 422–427, 2002