Insights into the Nature of Self‐Extinguishing External Donors for Ziegler‐Natta Catalysis: A Combined Experimental and DFT Study
Sign Up to like & getrecommendations! Published in 2020 at "ChemCatChem"
DOI: 10.1002/cctc.202001493
Abstract: Developing donors for Ziegler‐Natta (ZN) catalysis to control the polymerization reaction and produce polymers with desirable properties has always been challenging due to the multi‐component nature of the catalytic systems. Here, we have developed a… read more here.
Keywords: external donors; self extinguishing; dft study; ziegler natta ... See more keywords
Mechanistic study on comonomer effect in ethylene/1-hexene copolymerization with TiCl4/MgCl2 model Ziegler-Natta catalysts
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Catalysis"
DOI: 10.1016/j.jcat.2018.11.034
Abstract: Abstract Two MgCl2-supported Ziegler-Natta model catalysts were prepared by contacting activated MgCl2 with deficient or excess amount of TiCl4. Ethylene/1-hexene copolymerization with the catalysts was conducted under different 1-hexene feed, and active center concentration of… read more here.
Keywords: hexene; ziegler natta; hexene copolymerization; ethylene hexene ... See more keywords
UHMW Ziegler–Natta polyethylene: Synthesis, crystallization, and melt behavior
Sign Up to like & getrecommendations! Published in 2017 at "Journal of The Taiwan Institute of Chemical Engineers"
DOI: 10.1016/j.jtice.2017.04.011
Abstract: Abstract The fabrication of normal and UHMW PE end-products involves melting and crystallization of the polymer. Therefore, the melt behavior and crystallization of as-synthesized UHMW PE, and NMW PE and E-1-hexene copolymer have been studied… read more here.
Keywords: crystallization; melt behavior; uhmw ziegler; ziegler natta ... See more keywords
Effect of AlEt2Cl on the polymerization of isoprene using TiCl4/MgCl2 type Ziegler-Natta catalyst: A DFT study
Sign Up to like & getrecommendations! Published in 2021 at "Molecular Catalysis"
DOI: 10.1016/j.mcat.2021.111399
Abstract: Abstract Alkylaluminium is one of the components of the Ziegler-Natta catalysts, which plays a significant role in the active materials with different regions and stereoselectivity. The polymerization of isoprene with alkylaluminium in TiCl4/MgCl2 type Ziegler-Natta… read more here.
Keywords: polymerization isoprene; ziegler natta; mgcl2;
Preparation and properties of polyethylene/dodecanethiol-MoS2 nanocomposites with dodecanethiol-MoS2/MgCl2-supported Ziegler–Natta catalyst via an in situ polymerization method
Sign Up to like & getrecommendations! Published in 2017 at "Polymer"
DOI: 10.1016/j.polymer.2016.11.069
Abstract: Abstract The dodecanethiol-modified molybdenum disulfide (OMoS 2 ) was used as template to form a layered OMoS 2 MgCl 2 -supported Ziegler–Natta catalyst via a co-agglomeration method. The effects of OMoS 2 on the catalyst… read more here.
Keywords: dodecanethiol mos2; supported ziegler; method; catalyst ... See more keywords
Influence of alkylaluminium on the copolymerization of isoprene and butadiene with supported Ziegler-Natta catalyst
Sign Up to like & getrecommendations! Published in 2020 at "Polymer"
DOI: 10.1016/j.polymer.2020.122766
Abstract: Abstract The heterogeneous TiCl4/MgCl2 Ziegler-Natta catalysts activated by alkylaluminium (AlR3) yield active centers with complex structures which are sensitive to the structure and concentration of AlR3. Effects of AlR3 on the copolymerizations of isoprene (Ip)… read more here.
Keywords: alkylaluminium; ziegler natta; copolymerization; isoprene butadiene ... See more keywords
Mechanical properties of isotactic 1-butene-ethylene copolymers from Ziegler-Natta catalyst
Sign Up to like & getrecommendations! Published in 2021 at "Polymer"
DOI: 10.1016/j.polymer.2021.123408
Abstract: Abstract The mechanical properties and elastic behavior of Ziegler-Natta isotactic 1-butene-ethylene (BuEt-ZN) copolymers, having a broad composition from 1.7 to 45.5 mol% of ethylene units, are studied. The multi-site nature of the catalytic system determines a… read more here.
Keywords: ziegler natta; mechanical properties; ethylene; butene ... See more keywords
Computational modeling of heterogeneous Ziegler-Natta catalysts for olefins polymerization
Sign Up to like & getrecommendations! Published in 2018 at "Progress in Polymer Science"
DOI: 10.1016/j.progpolymsci.2018.06.005
Abstract: Abstract Since 1963, when Karl Ziegler and Giulio Natta were jointly awarded the Nobel Prize for their discoveries of the catalytic polymerization of olefins with Ti-chlorides and Al-alkyls, heterogeneous Ziegler-Natta (ZN) catalysts have become the… read more here.
Keywords: ziegler; polymerization; heterogeneous ziegler; natta ... See more keywords
Understanding Ziegler-Natta Catalyst Structure via Low-Dose Transmission Electron Microscopy
Sign Up to like & getrecommendations! Published in 2018 at "Microscopy and Microanalysis"
DOI: 10.1017/s1431927618010322
Abstract: Ziegler-Natta catalysts are used to produce a significant fraction of Dow’s 16 billion pound annual polyethylene production. The current generation of Ziegler-Natta catalysts is based on titanium active species supported on high surface area magnesium… read more here.
Keywords: catalyst structure; ziegler natta; natta catalysts; microscopy ... See more keywords
Direct Preparation of Transparent Isotactic Polypropylene with Supported Ziegler–Natta Catalysts Containing Novel Eco-friendly Internal Electron Donors
Sign Up to like & getrecommendations! Published in 2020 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.0c00387
Abstract: This study reported novel eco-friendly Ziegler-Natta catalysts containing bio-derived maleic rosinate tri-n-butyl and maleic rosinate tri-n-octyl as internal electron donors for propylene polymeriz... read more here.
Keywords: eco friendly; internal electron; natta catalysts; novel eco ... See more keywords
Poly(olefin)-Based Anion Exchange Membranes Prepared Using Ziegler–Natta Polymerization
Sign Up to like & getrecommendations! Published in 2019 at "Macromolecules"
DOI: 10.1021/acs.macromol.8b02756
Abstract: Bromoalkyl-functionalized poly(olefin)s were synthesized by copolymerization of 4-(4-methylphenyl)-1-butene with 11-bromo-1-undecene using Ziegler–Natta polymerization. The resulting bromoalkyl-fun... read more here.
Keywords: ziegler natta; natta polymerization; poly olefin; using ziegler ... See more keywords