ANALYSIS OF THE DISORDER OCCURRING IN THE CRYSTAL-STRUCTURE OF SYNDIOTACTIC POLYPROPYLENE

被引:77
作者
AURIEMMA, F [1 ]
DEROSA, C [1 ]
CORRADINI, P [1 ]
机构
[1] UNIV NAPOLI FEDERICO II,DIPARTIMENTO CHIM,VIA MEZZOCANNONE 4,I-80134 NAPLES,ITALY
关键词
D O I
10.1021/ma00073a029
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Some possible kinds of disorder in the packing of chains of syndiotactic polypropylene, compatible with the maintenance of crystalline long-range order, are discussed and the corresponding models are described. The diffraction intensities at appropriate points or lines of the reciprocal lattice are calculated for the various models; experimental observations of the intensity lowering of some reflections and the appearance of haloes are explained with the models in a semiquantitative way. The possible connection of some kinds of disorder with the presence of configurational defects along the chains is discussed.
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页码:5719 / 5725
页数:7
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