نتایج جستجو برای: unsaturated polyester amide

تعداد نتایج: 35060  

Journal: :Journal of Engineered Fibers and Fabrics 2021

Recently development of high-performance polymer composites made from natural resources in the various sectors is increasing tremendously due to environmental issues and health hazard possessed by synthetic fibers during disposal manufacturing. Among many different types resources, kenaf have been extensively investigated as an alternative reinforcement for over past few years their low cost, g...

Journal: :Journal of the Japan Society of Colour Material 1960

Journal: :Chemical science 2013
Philip Wheeler Harit U Vora Tomislav Rovis

The scope of the NHC-redox amidation has been expanded to include a variety of α,β-unsaturated aldehydes, including α-fluoro α,β-unsaturated aldehydes which give rise to enantioenriched α-fluoroamides in good to excellent yield and enantioselectivity (up to 97% ee). Enantioenriched amines may be elaborated to either diastereomer of the product in high diastereoselectivity (up to 99:1). Function...

Journal: :Journal of the Society of Materials Science, Japan 1966

ژورنال: مواد پرانرژی 2015

Insulation of solid propellant to controlling and limiting the burning surface and also to avoid of heat transfer to the solid rocket body is done. This type of coating is defined as inhibitors of combustion. Unsaturated polyesters such as polyurethane are used for good chemical compatibility between double base propellant and inhibitor. In this article, the effect of aromatic groups and the ef...

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