ON THE FLEXIBILITY OF CYCLOCHAIN POLYMERS

被引：55
作者：
PAVLOVA, SSA
RONOVA, IA
TIMOFEEVA, GI
DUBROVINA, LV
机构：
[1] Institute of Elemento-Organic Compounds, Academy of Sciences of Russia, Moscow, 117813
来源：
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1993年 / 31卷 / 12期
关键词：
CONFORMATIONAL PARAMETERS; CYCLOCHAIN POLYMERS; FLEXIBILITY;
D O I：
10.1002/polb.1993.090311208
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Conformational parameters for a wide variety of aromatic cyclochain polymers have been computed assuming free rotation about virtual bonds. The flexibility with free rotation is shown to be determined by the geometry of the repeat unit and can vary over a wide range (15-1500 angstrom). Experimental values of the Kuhn segment length A are calculated from literature data on the hydrodynamic behavior of polymeric macromolecules of this class in solution. For most polymers A(fr) for free rotation is equal to the experimental A(exp), and hindered rotation is mainly due to bulky substituents. (C) 1993 John Wiley & Sons, Inc.
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页码：1725 / 1757
页数：33
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