Spectroscopic and Dielcometric Study of the Kinetics of Alcoholysis of Trichloroacetyl Chloride with Butanol
摘要:
The kinetics of alcoholysis of trichloroacetyl chloride with butanol in carbon tetrachloride were studied by dielcometry and IR spectroscopy. The reaction is reversible, and it involves intermediate formation of 1-butoxy-1,2,2,2-tetrachloroethanol and 1,1,2,2,2-pentachloroethanol.
(R′—TCA) in the crystallinestate (R′—TCAs with n = 4, 5 in the glassy state) have been studied, End-group (CCl 3 COO—) vibrations have been assigned by referring to the previous results for methyl and ethyl analogs and four methylene band progressions have been analyzed. Interaction between methylene and end group vibrations is discussed. It is suggested that in the crystallinestate the nP-TCA ( n
METHOD FOR PRODUCING CARBONATE COMPOUND AND METHOD FOR PRODUCING AROMATIC POLYCARBONATE
申请人:Asahi Glass Company, Limited
公开号:US20150152037A1
公开(公告)日:2015-06-04
The present invention relates to a method for producing a carbonate compound containing: a first step of reacting a compound represented by the following Formula (1) with a compound represented by the following Formula (21) or a compound represented by the following Formula (22) to obtain a reaction mixture containing a carbonate compound, and a second step of bringing the reaction mixture containing a carbonate compound into contact with a strongly basic compound,
in which R
1
represents a monovalent organic group, and R
2
represents a divalent organic group.
base-promoted condensation reactions of alcohols with the photo-oxidized TCE that was prepared by irradiation with UV-C or visible light under O2 or O2/Cl2 (∼4%) bubbling, respectively. Cyclic carbonate esters could also be synthesized from a solution of TCE and the ethylene glycol derivative by irradiation of UV-C light under O2 bubbling. With respect to the reaction mechanism, the photochemical oxidation of
Process for preparing elastomeric copolymers of ethylene with a high tensile strength of the crude product
申请人:ENICHEM ELASTOMERI S.r.l.
公开号:EP0546629A1
公开(公告)日:1993-06-16
Elastomeric copolymers of ethylene including:
(a) 60-90% in moles of ethylene;
(b) 1-30% in moles of an a-olefin CH2 =CHR, where R is an alkyl radical having from 2 to 6 carbon atoms;
(c) 0-20% in moles of propylene;
the sum of percentages (a), (b) and (c) being equal to 100, and the crude product having an ultimate tensile stress of between 10 and 200 kg/cm2.
POLYMERIZATION CATALYST COMPOSITION AND PROCESS FOR PRODUCTION OF POLYMER
申请人:Mitsui Chemicals, Inc.
公开号:EP1857471A1
公开(公告)日:2007-11-21
A polymerization catalyst composition for a radically polymerizable monomer of the present invention comprises a transition metal-containing phosphazenium composition which is produced by mixing a phosphazenium compound with a compound of a transition metal belonging to Groups 4 to 12 in the periodic table and an organic halogen compound.