4,4 -Bismaleimidodiphenyl methane

An alternative method to the step polymerization of a mixture of phenols with methanal to form a copolymerized network is the free radical polymerization of substituted aromatics containing polymerizable, double bonds to produce products with improved properties. In this way, a highly crosslinked network is obtained by copolymerization of allyl Xylok with 4,4 -bismaleimidodiphenyl methane in presence of diisopropylbenzyl peroxide and imidazole (Scheme 25). 

Lu Guotao, Huang Ying, Yan Yehai, Zhao Tong, and Yu Yunzhao. 4,4 -Bismaleimidodiphenyl methane modified novolak resin/titania nanocomposites Preparation and properties. J. Appl. Polym. Sci. 102 no. 1 (2006a) 52-57. 

Carbon-13 NMR Investigation of the Oligomerization of Bismaleimidodiphenyl Methane with DiaUyl Bisphenol A... 

Materials. Bismaleimidodiphenyl methane, 1, was obtained from Ciba-Geigy Corporation. It is a commercial grade yellow powder containing greater than 85 t of theoretical maleimide double bond content. 

A soluble prepolymer results from the addition of bismaleimidodiphenyl methane 1 to diallyl bisphenol A 2 at approximately 150 °C. In the present study, a detailed 13C NMR investigation has provided strong evidence for the proposed structure of the soluble olig< ier. The NMR has also provided s< >e idea of the rate of... 

Thermal Free Radical Copolymerization and Crosslinking of Allyl Xylok wilh4,4 -Bismaleimidodiphenyl methane (from ref [143])... 

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