期刊
POLYMER
卷 47, 期 6, 页码 1767-1771出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2006.01.066
关键词
clay; nanocomposites; polypropylene
Alkltriphenylphosphonium-modified montinorillonite(PMMT) was used to prepare TiCl4/MgCl2/PMMT compound catalyst and exfoliated i-PP/PMMT nanocomposites were prepared by in situ intercalative polymerization of propylene with TiCl4/MgCl2/PMMT catalyst. The catalytic efficiency of the above catalyst under optimum polymerization condition could reach as high as 1300 kg/(molTi h) and the combining of PMMT with Z-N catalyst do not change the stereo-regulation catalytic properties of the Z-N catalyst. The synthesized PP possessed high isotacticity, melting point and molecular weight, Wide angle X-ray diffraction (XRD) and transmission electron microscopy (TEM) examinations evidenced the nanocomposites obtained were exfoliated ones. (c) 2006 Elsevier Ltd. All rights reserved.
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