Intramolecular formal [4+2] cycloadditionbetween 3-ethoxycyclobutanones and a carbon-carbon double bond to the corresponding bicyclo[4.n.0]alkan-2-one derivatives proceeded effectively by using ethylaluminium dichloride.
[EN] NOVEL METAL COMPLEXES, ESPECIALLY THE RUTHENIUM COMPLEXES, AND USE THEREOF<br/>[FR] NOUVEAUX COMPLEXES MÉTALLIQUES, EN PARTICULIER LES COMPLEXES DE RUTHÉNIUM, ET LEUR UTILISATION
申请人:UNIV WARSZAWSKI
公开号:WO2014027040A1
公开(公告)日:2014-02-20
The object of the invention is a novel metal complex of the formula (1), the parameters of which are as defined in the description of the invention, as well as use of the metal complex of the formula (1) in the olefin metathesis reactions.
Multifunctional curing agents and their use in improving strength of composites containing carbon fibers embedded in polymeric matrix
申请人:UT-Battelle, LLC
公开号:US10240011B2
公开(公告)日:2019-03-26
A functionalized carbon fiber having covalently bound on its surface a sizing agent containing epoxy groups, at least some of which are engaged in covalent bonds with crosslinking molecules, wherein each of said crosslinking molecules possesses at least two epoxy-reactive groups and at least one free functional group reactive with functional groups of a polymer matrix in which the carbon fiber is to be incorporated, wherein at least a portion of said cros slinking molecules are engaged, via at least two of their epoxy-reactive groups, in crosslinking bonds between at least two epoxy groups of the sizing agent. Composites comprised of these functionalized carbon fibers embedded in a polymeric matrix are also described. Methods for producing the functionalized carbon fibers and composites thereof are also described.