期刊
POLYMER
卷 42, 期 23, 页码 9627-9631出版社
ELSEVIER SCI LTD
DOI: 10.1016/S0032-3861(01)00510-9
关键词
isotactic polypropylene; ADK STAB NA-11; electron diffraction
Sodium 2,2 ' -methylene-bis-(4,6-di-t-butylphenylene)phosphate(NA-11) is widely used as a nucleating agent in the processing of isotactic polypropylene(iPP). To reveal its act as the nucleating agent on iPP, the crystallization behavior of NA-11 on isotactic polypropylene was investigated. NA-11 was crystallized on the oriented, thin iPP film from the solution in dimethyformamide at various temperatures. iPP was also crystallized from the melt on NA-11 crystals grown from ethanol. The samples thus prepared were examined by electron microscopy. NA-11 epitaxially crystallized on the iPP substrate at high temperatures, performing the crystallographical relationship, [010](NA-11)//[001](ipp) and (001)(NA-11)//(010)(ipp), and iPP on the NA-11 crystals with the same orientational relationship. (C) 2001 Elsevier Science Ltd. All rights reserved.
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