weightThe homopolymerization of 1,3-butadiene in a stirred batch reactor with the catalytic system Nd octoate/diethyl-aluminium chloride/triisobutyl-aluminium in n-heptane was studied. The effect of various reaction conditions on especially high conversion and molecular weight is reported. Polymerization...
Our picture of the degree of double bond character between adjacent carbon atoms in a polyene is based on whether the various contributing molecular orbitals are bonding or antibonding. For the C-2 to C-3 bond in butadiene, the π2 provides no electron density, but π1 does provide electron...
1,3-butadiene's (BD) mode of action as a rodent carcinogen is genotoxicity, an important precursor for cancer. Back to Top | Article Outline Methods: A continuum of biomarkers was measured in BD-exposed workers in the Czech Republic after extensive exposure assessments over several months. Back...
trans-1-chloro-1,3-butadieneab initio MO calculationselectron diffractionThe molecular structures of the title compounds have been investigated by ab initio MO calculations and by analyses of room-temperature electron diffraction data alone, as well as by conjoint use of these data and literature ...
Molecular Weight of Substances Substance Molecular Weight (kg/kmol) (g/mol) (lb/lbmol) Acetylene, C2H2 26.038 Air 28.966 Ammonia (R-717) 17.02 Argon, Ar 39.948 Benzene 78.114 n - Butane, C4 H10 58.124 1,2 - Butadiene 54.092 1-Butene 56.108 cis -2-Butene 56.108 trans-2-Butene 56.108 ...
Figure 2. Polymerization of butadiene with aluminum alkyl chloride–cobalt octanoate. Effect of chloride content on percentage of cis-1,4 structure at various temperatures80 The polymer molecular weight is affected by several variables, such as (a) the type of solvent, (b) the monomer and cobalt...
Article https://doi.org/10.1038/s41467-024-46607-y Molecular sieving of iso-butene from C4 olefins with simultaneous high 1,3-butadiene and n-butene uptakes Received: 17 May 2023 Accepted: 5 March 2024 Check for updates Junhui Liu1, Hanting Xiong1, Hua Shuai1, Xing Liu1, Yong Peng1,...
(Oxy) ethyl-octadecanoic acid; trimethylamine oxide; trimethylisopyrazine; 3,5-dimethylcyclohexanone; 2,3-dimethyl-1,4-pentene-2- Alcohol; 1,2-dimethylcyclohexane; 1,3-butadiene-1-carboxylic acid; thienyl chloride; 2-acetyl-1-phenylhydrazine; 1,1,1-trinitroethane ; 1,3,5-triazine-2,4,6-...
Wei S (2005) Process and production system for thiophene manufacturing from butadiene and sulfur. Chinese Patent CN 1420116 Google Scholar Rosa M (1991) Archaebacteria: lipids, membrane structures, and adaption to environmental stresses. In: di Prisco G (ed) Life under extreme conditions. Spring...
The structures of two diene iron tricarbonyls having substituents in syn and anti positions have been determined by X-ray diffraction studies, and provide a reliable model for the parent compound π-butadiene iron tricarbonyl (which is liquid at room temperature) including hydrogen atom positions. ...