The experimental electron density of ethylene oxide was derived from a multipole refinement of 100 K X-ray data and complemented by density-functional calculations at experimental and optimized geometry. Atomic and bond-topological properties were derived using the atoms-in-molecules (AIM) formalism. ...
Density and viscosity of binary systems water-nonionic surfactants poly(ethylen-oxide) alkyl alcohols type, [C n H 2n+1 (OCH 2 CH 2 ) m OH, C n E m ], have been studied. The partial molar volumes in the dilute solution range and the viscosity B-coefficients were calculated. The ...
The rate-limiting step is the subsequent epoxidation of ethyleneviatransfer of an oxygen atom, which has a calculated enthalpic barrier of 11.6kcal/mol relative to the preceding intermediate. This is followed by desorption of the ethylene oxide product and dehydration to regenerate the catalyst. The...
The surfaces of conventional polymer films, such as low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), poly(ethylene te... SG Robbins,RD Voss - 《Synthetic Metals》 被引量: 83发表: 1991年 Processed Low NOx Fly Ash as a Filler in Plastics ash was then...
1 H-NMR spectra of 1,3,5-trioxane/1,3-dioxolane-copolymers show triad sequences for the methylene oxide units, whereas no sequence dependence is observed for the ethylene oxide units. In 13 C-NMR-spectra, pentad sequences are observed fo... D Fleischer,RC Schulz - 《Macromolecular Chemistr...
Mechanism of high Li-ion conductivity in poly(vinylene carbonate)-poly(ethylene oxide)cross-linked network based electrolyte revealed by solid-state NMR Solid polymer electrolytes(SPEs)have become increasingly important in advanced lithium-ion batteries(LIBs)due to their improved safety and mechanical ...
high-density polyethylene (HDPE), linear version of polyethylene, a light versatile synthetic resin made from the polymerization of ethylene. HDPE is manufactured at low temperatures and pressures, using Ziegler-Natta and metallocene catalysts or activated chromium oxide (known as a Phillips catalyst)....
A unimodal LLDPE formed from ethylene and at least one C3-12 alpha-olefin comonomer by single site catalysis having the following properties: a density of 915-950 kg /m3; MFR2 in the range 0.5 to 6; Mw/Mn in the range 2.5 to 4; a shear thinning SHI (1/100) of at least 1.7; ...
Ethylene oxide (EO) is a direct-acting SN2 alkylating agent and a rodent and probable human carcinogen. In vitro reactions of EO with calf thymus DNA in aq... F Li,A Segal,JJ Solomon - Chemico-Biological Interactions 被引量: 140发表: 1992年 Proton-Proton Final-State Interactions in the ...
2. A method of producing a high-density polyethylene composition comprising the steps of: introducing ethylene, and optionally one or more alpha-olefin comonomers into a first reactor; polymerizing said ethylene optionally in the presence of said one or more alpha-olefin comonomers in said first...