The surface chemistry of ethylene, propylene and 2-butenes on clean and oxygen-modified Mo(100) has been studied by TPD UPS and RAIRS to shed some light on the catalytic mechanism of olefin metathesis in heterogeneous phase. The currently accepted mechanism for olefin metathesis in homogeneous ...
Water-responsive supercontractile polymer films composed of poly(ethylene oxide) and poly(ethylene glycol)-α-cyclodextrin inclusion complex contract by more than 50% of their original length within seconds after wetting and become soft and stretchable hydrogel thin films that can be used in bioelectro...
Methylethylene glycol Monopropylene glycol Propane-1,2-diol propanediol Propyl glycol Propylene Glycol Propylene glycol (JP14/USP) Propylene glycol (TN) Propylene glycol USP Propylene glycol [USAN:JAN] Propylene glycolate, sodium salt R-(-)-1,2-propanediol R-1,2-PROPANEDIOL S-(+)-Propylene ...
1-Methylethylene carbonate 4-Methyl-1,3-dioxolan-2-one 4-Methyl-2-oxo-1,3-dioxolane 4-Methyldioxalone-2 Arconate 5000 Carbonic acid cyclic methylethylene ester Carbonic acid, cyclic propylene ester Carbonic acid, cyclic propylene ether
PROPYLENE-BASED COMPOSITION FOR MAKING PIPES FIELD: chemistry.;SUBSTANCE: invention relates to a composition which includes 1-hexene-propylene copolymer and a heterophase ethylene-propylene copolymer... MI Galvan,CI Cavalieri,FI Tisi,... 被引量: 0发表: 2020年 Bio...
We found that N-doping triggers specifically adsorbed propylene carbonate solvent in the inner Helmholtz plane (IHP), which prevents ion rearrangement and enhances the migration of cations. However, this specific adsorption accelerated solvent decomposition, rendering rapid performance degradation in ...
n = number of repeating units in the other monomer block, typically composed of ethylene or another alpha-olefin p = number of times this repeating unit sequence occurs along the polymer chainIn block copolymers, the propylene and the other monomer units are arranged in distinct blocks or segmen...
The pyridine complex 4 is not stable at higher temperatures, and after organic work up a stoichiometric amount of the C-C coupling product 2,2'-bipyridine is obtained. Ethylene and propylene react with 1 to give the monoinsertion products Cp*2YCH2CH2(2-NC5H4) (5) and Cp*2YCH2CHMe(2-...
R. Alkylation of aromatics with ethylene and propylene: recent developments in commercial processes. Appl. Catal. A 221, 283–294 (2001). CAS Google Scholar Hansen, N., Brüggemann, T., Bell, A. T. & Keil, F. J. Theoretical investigation of benzene alkylation with ethene over H-ZSM-...
Effect of an additive on the radiation resistance of polyethylene and ethylene–propylene copolymer In low-density polyethylene containing the additive propylfluorancene, radiation energy received by polyethylene is transferred to propylfluorancence, and ... T Fujimura,K Arakawa,N Hayakawa,... - 《...