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Preparation of High-Performance Polyethylene Nanocomposites with Oleic Acid–Siloxene-Supported Ziegler–Natta Catalysts [PDF]

Molecules
The addition of two-dimensional inorganic nanomaterials can effectively enhance the properties of polyethylene (PE). In the present study, a series of high-performance PE/oleic acid (OA)–siloxene nanocomposites were prepared by in situ polymerization ...
Huan Yue, Xin Yan, Chenghan Huang, Hexin Zhang, Jianming Yang, Liang Fang, Hee-Seon Kim   +6 more
doaj   +2 more sources

Dataset of energetically accessible structures of MgCl2/TiCl4 clusters for Ziegler-Natta catalysts [PDF]

Data in Brief, 2021
This data article provides a dataset of the energetically accessible structures including the most stable structures of xMgCl2/yTiCl4 nanoplates (x = 6–19, y = 0–4).
Gentoku Takasao, Toru Wada, Ashutosh Thakur, Patchanee Chammingkwan, Minoru Terano, Toshiaki Taniike   +5 more
doaj   +2 more sources

Nano-Dispersed Ziegler-Natta Catalysts for 1 μm-Sized Ultra-High Molecular Weight Polyethylene Particles [PDF]

Frontiers in Chemistry, 2018
A catalytic approach to synthesize microfine ultra-high molecular weight polyethylene (UHMWPE) particles was proposed based on the exploitation of nano-sized catalysts.
Patchanee Chammingkwan, Yusuke Bando, Minoru Terano, Toshiaki Taniike   +3 more
doaj   +2 more sources

Structural Characterization of Electron Donors in Ziegler-Natta Catalysts. [PDF]

J Phys Chem C Nanomater Interfaces, 2018
Ziegler-Natta catalysis is a very important industrial process for the production of polyolefins. However, the catalysts are not well-understood at the molecular level. Yet, atomic-scale structural information is of pivotal importance for rational catalyst development.
Blaakmeer ESM, Antinucci G, Correa A, Busico V, van Eck ERH, Kentgens APM.   +5 more
europepmc   +7 more sources

Probing the Interaction of Diester Internal Donors (ID) with AlEt₃ on Ziegler-Natta Surfaces: A Comparison Between Binary (MgCl₂/ID) and Ternary (MgCl₂/ID/TiCl₄) Formulations [PDF]

Molecules
Organic electron donors are essential components of Ziegler-Natta (ZN) catalysts to produce isotactic polypropylene. In particular, aromatic or aliphatic diesters are widely used as ‘Internal Donors’ (ID) in MgCl2/ID/TiCl4 precatalyst formulations ...
Felicia Daniela Cannavacciuolo, Giuseppe Antinucci, Roberta Cipullo, Vincenzo Busico   +3 more
doaj   +2 more sources

Immobilizing metallocene by solid polymethylaluminoxane “sMAO” for slurry-phase ethylene-1-hexene copolymerization [PDF]

MATEC Web of Conferences, 2022
In the field of olefin catalytic polymerization, metallocene catalysts show higher activity than traditional Ziegler-Natta catalysts. In this study, benzoic acid catalyzed the controlled hydrolysis of trimethylaluminum (TMA) to methylaluminoxane (MAO ...
Wu Chaofan, Ge Tengjie, Jiang Zeyu, Jiang Yanfeng, Zhang Qian, Li Jian   +5 more
doaj   +1 more source

The Use of Electron Donors to Increase Stereospecificity in Ziegler-Natta Propylene Polymerization [PDF]

علوم و تکنولوژی پلیمر, 2016
Different chemical components in traditional Ziegler–Natta catalytic system include: (1) titanium and vanadium containing compounds, mostly TiCl4, as an active centre, (2) trialkylaluminium-based Lewis acid compounds, especially triethylaluminium, as ...
Farshid Nouri-Ahangarani, Naeimeh Bahri-Laleh, Mehdi Nekoomanesh-Haghighi   +2 more
doaj   +1 more source

Imido-modified SiO2-supported Ti/Mg Ziegler-Natta catalysts for ethylene polymerization and ethylene/1-hexene copolymerization [PDF]

Polyolefins Journal, 2016
A novel imido-modified SiO2-supported Ti/Mg Ziegler-Natta catalyst for ethylene and ethylene/1-hexene polymerization is investigated. The catalyst is prepared by modification of (SiO2/MgO/MgCl2)TiClx Ziegler-Natta catalysts via supporting vanadium ...
Ting Fu, Ruihua Cheng, Xuelian He, Zhen Liu, Zhou Tian, Boping Liu   +5 more
doaj   +1 more source

Active site nature of magnesium dichloride-supported titanocene catalysts in olefin polymerization [PDF]

Polyolefins Journal, 2015
Heterogeneous Ziegler-Natta and homogeneous metallocene catalysts exhibit greatly different active sitenature in olefin polymerization. In our previous study, it was reported that MgCl2-supported titanocenecatalysts can generate both Ziegler-Natta-type ...
Toshiaki Taniike, Keisuke Goto, Minoru Terano   +2 more
doaj   +1 more source

Determination of kinetic parameters for ethylene polymerization (with and without hydrogen) by Ziegler-Natta catalyst. [PDF]

Polyolefins Journal, 2020
In this study, slurry polymerization kinetics of ethylene with TiCl4/Mg(OEt)2/AlR3 Ziegler-Natta catalysts in various conditions using the model of sum square error (SSE) (method I) and model of least square error (LSE) (Method II) was investigated.
Seyed Mehdi Ghafelebashi Zaranda, Ali Safinejad   +1 more
doaj   +1 more source