Viscometry study of ethylene-cyclic olefin copolymers

被引:41
作者
Delpech, MC
Coutinho, FMB
Habibe, MES
机构
[1] UFRJ, IMA, BR-31945970 Rio De Janeiro, Brazil
[2] IQ UERJ, Dept Proc Ind, Rio De Janeiro, Brazil
[3] Polialden Petroquim SA, Camacuri, BA, Brazil
关键词
ethylene-cycle olefin copolymers; high density polyethylene; viscometric study;
D O I
10.1016/S0142-9418(01)00104-0
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Viscometric measurements. in varied conditions, were performed with commercial and synthesized samples of cyclic olefin copolymers (COC). based on ethylene and norbornene. High density polyethylenes (HDPE) samples were also analysed for comparison purposes. Five different equations were used to calculate intrinsic viscosities and viscometric constant values: Huggins, Kraemer, Schulz-Blaschke, by graphic extrapolation, and Solomon-Ciuta, Deb-Chanterjee and again Schulz-Blaschke. through a single specific viscosity measurement. The results were compared and it was verified that the latter determination was suitable for the systems analysed. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:411 / 415
页数:5
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