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A Facile One-Step Method for Spherical Support Preparation of Ziegler-Natta Catalyst

机译:齐格勒-纳塔催化剂球形支撑制备的简便一步法

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This study reports a novel one-step method to synthesize a new spherical support for Ziegler-Natta catalyst under moderate condition. The support is obtained from a dispersion system where the particle stabilizer polyvinylpyrrolidone plays a main role to stabilize the spherical particles. The new chemical of the support is CH_3CH_2OMgOCH(CH_2Cl)_2, which is first reported here, has been approved by newly filed patents and also confirmed by solution NMR, solid state NMR, pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS), and ICP-MS. The support and catalyst particles have uniform distributions. The catalyst prepared from this support has been evaluated with high activity. The polypropylene obtained has high isotacticity. VC 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 41014.
机译:这项研究报告了一种新颖的一步法,可在中等条件下合成齐格勒-纳塔催化剂的新型球形载体。载体是从分散体系中获得的,其中颗粒稳定剂聚乙烯吡咯烷酮起着稳定球形颗粒的主要作用。载体的新化学物质是CH_3CH_2OMgOCH(CH_2Cl)_2,这是首次在这里报道,已被新提交的专利批准,并且还通过溶液NMR,固态NMR,热解-气相色谱-质谱法(Py-GC-MS )和ICP-MS。载体和催化剂颗粒具有均匀的分布。由该载体制备的催化剂已经以高活性进行了评估。所得聚丙烯具有高全同立构规整度。 VC 2014 Wiley Periodicals,Inc. J. Appl。 Polym。科学2014,131,41014。

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