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Visualization of on-surface ethylene polymerization through ethylene insertion
Science, 2022Polyethylene production through catalytic ethylene polymerization is one of the most common processes in the chemical industry. The popular Cossee-Arlman mechanism hypothesizes that the ethylene be directly inserted into the metal–carbon bond during chain growth, which has been awaiting microscopic and spatiotemporal experimental ...
Weijun Guo +14 more
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Pressure-Induced Polymerization in Solid Ethylene
The Journal of Physical Chemistry B, 2005Ethylene is the simplest organic molecule containing a double bond and is the starting monomeric unit in the synthesis of polyethylene, one of the most largely produced polymers. Here we report a high pressure infrared study of ethylene at room temperature.
D. Chelazzi +4 more
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Pressure induced polymerization of fluid ethylene
The Journal of Chemical Physics, 2016The spontaneous polymerization of fluid ethylene under high temperature and pressure conditions has been characterized by using FTIR absorption spectroscopy. The fluid has been isobarically heated at pressures ranging between 0.4 and 1.5 GPa by means of a resistively heated membrane diamond anvil cell.
SCELTA, DEMETRIO +2 more
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Journal of Polymer Science Part A: Polymer Chemistry, 1999
Kinetics of ethylene homopolymerization reactions and ethylene/1-hexene copolymerization reactions using a supported Ziegler–Natta catalyst was carried out over a broad range of reaction conditions. The kinetic data were analyzed using a concept of multicenter catalysis with different centers that respond differently to changes in reaction parameters ...
Y. V. Kissin, R. I. Mink, T. E. Nowlin
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Kinetics of ethylene homopolymerization reactions and ethylene/1-hexene copolymerization reactions using a supported Ziegler–Natta catalyst was carried out over a broad range of reaction conditions. The kinetic data were analyzed using a concept of multicenter catalysis with different centers that respond differently to changes in reaction parameters ...
Y. V. Kissin, R. I. Mink, T. E. Nowlin
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Superhydrophobic Polyethylene Films by Catalytic Ethylene Polymerization
Journal of Adhesion Science and Technology, 2008Polyethylene films were grown on a flat silica surface modified by the bis(imino)pyridyl iron(II) catalyst during ethylene polymerization in an organic solvent. The resulting films show under certain polymerization conditions superhydrophobic properties.
Thüne, P.C. +3 more
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Free radical polymerization of ethylene—IV. Kinetics of the heterophase polymerization of ethylene
Polymer Science U.S.S.R., 19635. R. S. STEARUS and L. E. FORMAN, J. Polym. Sei. 41: 381, 1960; A. K. TOBOLSKY and C. E. ROGERS, J. Polym. Sci. 41: 73, 1959 6. K. F. O'DRISCOLL and A. K. TOBOLSKY, J. Polym. Sci. 35: 259, 1959 7. A. A. KOROTKOV, S. P. MITSENGENDLER and V. N. KRASULINA, International Symposium on Macromolecular Chemistry, section II, p. 208. Moscow, June, 1960 8.
S.G. Lyubetskii, V.V. Mazurek
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Organocatalytic polymerization of ethylene carbonate
Materials Today Communications, 2015Abstract Organocatalytic polymerization of ethylene carbonate ( EC ) with 3-phenyl-1-propanol ( 3PP ) or triethylene glycol ( TEG ) as initiator and 1,5,7-triazabicyclo[4.4.0]dec-ene ( TBD ) as catalyst using a mono-mode microwave reactor results in poly(ether carbonate) s with M n (GPC) values between 2200 and 3100 g/mol and a ratio of ethylene ...
Gent Kapiti, Helmut Keul, Martin Möller
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Heterogeneous radical polymerization of ethylene
Polymer, 1962Abstract In the course of investigating the polymerization of ethylene initiated by azoisobutyronitrile in the presence of small amounts of benzene at 100 to 600 atm and at 70°C several unusual features were found, connected with an unusual polymerization mechanism.
B ERUSSALIMSKY +4 more
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