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首页> 外文期刊>Journal of Applied Polymer Science >Cocatalyst-originated aluminum residues in fibrous, very high molar mass polyethylene
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Cocatalyst-originated aluminum residues in fibrous, very high molar mass polyethylene

机译：纤维状，高摩尔质量聚乙烯中助催化剂产生的铝残留物

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摘要

In this work, fibrous very high molar mass polyethylene was prepared by Cp2TiCl2, which was supported on methylaluminoxane (MAO) pretreated mesoporous silica fiber. After the polymerization, an "ordinary" washing procedure was not sufficient to remove the aluminum residues of the cocatalyst MAO from the polymerization product. When hydrochloric acid was used in the termination of the polymerization, the aluminum existed as [Al(H2O)(6)]Cl-3, the presence of which causes additional signals to DSC and XRD grams of the polyethylene. These signals have previously been interpreted to be attributed to the extended chain crystal structure of the polyethylene. (C) 2004 Wiley Periodicals, Inc.
机译：在这项工作中，由Cp2TiCl2制备了非常高摩尔质量的聚乙烯纤维，该纤维负载在甲基铝氧烷（MAO）预处理的介孔二氧化硅纤维上。聚合后，“常规”洗涤程序不足以从聚合产物中除去助催化剂MAO的铝残留物。当使用盐酸终止聚合反应时，铝以[Al（H2O）（6）] Cl-3的形式存在，铝的存在会引起聚乙烯的DSC和XRD克数增加。这些信号先前已被解释为归因于聚乙烯的延伸链晶体结构。 （C）2004年Wiley Periodicals，Inc.

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