Modeling and Optimization of propylene polymerization with branching [PDF]
, 2014 A kinetic model has been proposed to fit the experimental data (2003) available from the open literature for branched propylene polymerization system. The present system considered is a binary catalyst system, in which the first catalyst produces the ...
Majumdar, S +2 more
core +2 more sources
Propylene-Ethylene Copolymer Covalent Adaptable Networks Synthesized by Resonance-Stabilized, Radical-Based Reactive Processing with Excellent Elevated-Temperature Creep Resistance. [PDF]
ChemSusChemPropylene‐ethylene copolymer covalent adaptable networks (PEC CANs) are synthesized via one‐step, radical‐based reactive processing with the use of initiator, dynamic cross‐linkers, and vinyl aromatic additives. The best CAN suppresses over 98% of creep at 100 °C (semicrystalline state) for 10,000 s compared to neat PEC.
Huang YW +6 more
europepmc +2 more sources
A new post-metallocene-ti catalyst with maltolate bidentade ligand: an investigation in heterogeneous polymerization reactions in different mesoporous supports [PDF]
, 2016 A new titanium catalyst easily synthesized from ethylmaltol bidentate chelator ligand was studied in homogeneous and heterogeneous ethylene polymerization.
Basso, Nara Regina de Souza +6 more
core +1 more source
UHMWPE/HDPE in-reactor blends, prepared by in situ polymerization: synthetic aspects and characterization [PDF]
, 2017 This work covers the synthesis and characterization of in-reactor Ultra-High Molecular Weight Polyethylene/ High Density Polyethylene, UHMWPE/HDPE, blends by in situ polymerization in a single reactor, through dual catalyst immobilization. These blends
Cerrada, M. L. +8 more
core +4 more sources
eXPRESS Polymer Letters, 2017 The target of the present study was to investigate the structure-property relationships of heterophasic ethylenepropylene (EP) copolymers based on a single-site (metallocene) catalyst (SSC) supported with an emulsion technology developed by Borealis. The
M. Aarnio-Winterhof +3 more
doaj +1 more source
Zirconium and titanium complexes supported by tridentate LX2 ligands having two phenolates linked to furan, thiophene, and pyridine donors: precatalysts for propylene polymerization and oligomerization [PDF]
, 2008 Zirconium and titanium complexes with tridentate bis(phenolate)-donor (donor = pyridine, furan and thiophene) ligands have been prepared and investigated for applications in propylene polymerization.
Agapie, Theodor +4 more
core +2 more sources
Complex Macromolecular Architectures Utilizing Metallocene Catalysts
Macromolecules, 2003 Graft copolymers having poly(methyl methacrylate), PMMA, backbone and polystyrene, PS, polyisoprene, PI, poly(ethylene oxide), PEO, poly(2-methyl-1,3-pentadiene), P2MP, and PS-b-PI branches were prepared using the macromonomer methodology and high-vacuum techniques. The methacrylic macromonomers, mMM, were synthesized by anionic polymerization, whereas
Batis, C. +3 more
openaire +2 more sources
Polyolefin Synthesis by Metallocene Catalysts.
Kobunshi, 1993 メタロセン触媒は,ポリオレフィンの世界を変革する技術として注目を集めている.ここでは,メタロセン触媒によるポリプロピレン,ポリエチレン,ポリスチレン等のポリオレフィンの高性能化,シクロオレフィン,ジエン,極性モノマーを使った新規ポリオレフィン開発の可能性について紹介する.
Toshio Sasaki, Hirofumi Johoji
openaire +2 more sources
Interplay of reversible chain transfer and comonomer incorporation reactions in coordination copolymerization of ethylene/1–hexene [PDF]
Polyolefins Journal, 2019 Coordinative chain transfer polymerization (CCTP) has opened a new path for the development of novel products like olefin block copolymers and chain-end functional polyolefins.
Ali Ebrahimi +4 more
doaj +1 more source
Molecules, 2023 Despite large-scale investigations of homogeneous single-site metallocene catalysts and systems based on them, there are still unsolved problems related to the control of their activity and chemo- and stereoselectivity.
Lyudmila V. Parfenova +6 more
doaj +1 more source