reaction were measured in toluene solution for the Diels-Alder cycloaddition reaction of maleic anhydride (1) with a very active diene, 9,10-dimethylanthracene (4), and with a very inactive diene, 9-phenylanthracene (6), which is less reactive in the reaction with 1 by five orders of ...
Maleic anhydride undergoes a potentially explosive exothermic Diels-Alder reaction with 1-methylsilacyclopenta-2,4-diene at 150C [Barton, T. J., J. Organomet. Chem., 1979, 179, C19], and is considered an excellent dieneophile for Diels-alder reactions [Felthouse, Timothy R. et al. "...
The main goal of this work was to evaluate the incorporation of short silica fibers (SF) and ethylene-propylene-diene rubber, functionalized with maleic anhydride (EPDM-g-MA), in a polyamide 6 (PA 6) matrix. The fiber used as filler is a... MG Segatelli 被引量: 0发表: 2005年 Effec...
A fixed-bed or ebullated-bed reactor is used to oxidize benzene to maleic anhydride with air under the action of a V-Mo-P catalyst. The reaction temperature is 365°C.?Then absorb with water to produce maleic acid aqueous solution, and then use xylene for azeotropic distillation and ...
N-Maleyl derivatives of proteins are obtained atalkaline pHby reaction withmaleic anhydride. The acylated product is cleaved at pH < 5, regenerating the protein. The half-life (τ) ofϵ-N-maleyl lysine is 11h at pH 3.5 and 37°C. More rapid cleavage is observed with the 2-methylmale...
The hyperbranched polymer has a molar ratio of diene-derived polymer units to maleic anhydride-derived polymer units of between 0.4:1 and 0.6:1. The polymer of this invention has this ratio over a range of relative concentrations of diene and maleic anhydride in a reaction mixture. For example...
The enhanced compatibility steamed from the grafting reaction between the anhydride groups of MA and hydroxyl groups of PLA similar to that reported by Hassouna et al. [36]. This interaction enhanced the interfacial adhesion by improving stress transfer around the interface, resulting in an increase...
United States Patent US3326909 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text
A maleic anhydride copolymer comprising maleic anhydride units (I), conjugated diene units (II) and aliphatic monoolefin units (III) is provided. This copolymer has a weight-average molecular weight of from 500 to 50000. The molar ratio of unit (I)/(unit (II)+unit (III)) ranges from 30...
Reactivity of Uncyclized Diene Radical in the Cyclocopolymerization of Diallyl Ether with Maleic AnhydrideThe initial rate of the radical copolymerization of diallyl ether (DAE) with maleic anhydride (MA) in benzene and acetone, that produced a soluble copolymer of composition between 1:1 and 2:1...