A Highly Transparent Thermoplastic Synthesized from Ethylene that Melts Above 200 °C. [PDF]
Angew Chem Int Ed EnglWe introduce a highly transparent ethylene‐based thermoplastic (transmittance of 92%, haze of 8% and clarity of 92%) with a very low density (0.86g cm−3) and an high melting point (up to 228 °C). Abstract Polyolefin‐based thermoplastics are the most widely used polymers and produced in megaton scale.
Lukas F +3 more
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The Effects of Internal Electron Donors on MgCl2-Supported Ziegler-Natta Catalysts for Isotactic PP. [PDF]
Polymers (Basel)Li B, Li H, Hu H, Zhou Y, Mao G, Xin S.
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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 +5 more
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Synthesis of Isotactic Polybutene-1 with Ziegler-Natta Catalyst [PDF]
علوم و تکنولوژی پلیمر, 2022 Hypothesis: Butene-1 is in excess in the polyolefin plants of Iran. Considering the properties of isotactic polybutene-1, including high creep and environmental stress cracking resistances, excellent elastic reversibility and good chemical abrasion ...
shokoufeh Hakim +2 more
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Dataset of energetically accessible structures of MgCl2/TiCl4 clusters for Ziegler-Natta catalysts
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 +5 more
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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 +2 more
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A Study on the Effect of Catalyst Types on Microstructure of Ethylene/1-Hexene Copolymer by Thermal Fractionation [PDF]
علوم و تکنولوژی پلیمر, 2015 Olefinic copolymers of ethylene/1-hexene were synthesized by three main types of supported catalysts, including Philips, Ziegler-Natta and metallocene catalysts, and the specific microstructural features delivered by each class of the catalysts were ...
Seyed Mohammad Mehdi Mortazavi
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A Mathematical Model for Investigating the Effect of Reaction Temperature and Hydrogen Amount on the Catalyst Yield during Propylene Polymerization [PDF]
Kemija u Industriji, 2019 In this study, the effect of reaction temperature and hydrogen amount, as the most effective process variables on the Ziegler-Natta catalysts yield during propylene polymerization, was investigated with the aid of a validated mathematical model.
Gholam Hossain Varshouee +3 more
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Direct Carboboration of Aryl Alkenes with Stable Organoborons Through Ziegler-Type Addition. [PDF]
Adv Sci (Weinh)The direct carboboration of vinyl arenes with benzylic boronates has been achieved using KOtBu as the catalyst. Vinylcyclopropanes and vinylcyclobutane also participate in this reaction, yielding the corresponding 1,5‐ and 1,6‐carboboration products.
Yang M +5 more
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Preactive Site in Ziegler–Natta Catalysts [PDF]
The Journal of Physical Chemistry C, 2019 Ziegler–Natta catalysts are one of the most important industrial catalysts for the production of isotactic polypropylene, yet they are still not properly understood at the molecular level.
E. S. (Merijn) Blaakmeer +4 more
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