Results 41 to 50 of about 3,231,981 (274)
Molecules, 2012 The 80% ethanol extract of Alstonia yunnanensis afforded five new monoterpenoid indole alkaloids: 11-hydroxy-6,7-epoxy-8-oxo-vincadifformine (1), 14-chloro-15-hydroxy- vincadifformine (2), perakine N4-oxide (3), raucaffrinoline N4-oxide (4), and vinorine
Guobiao Liang +5 more
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Journal of Pure and Applied Microbiology, 2019 Natural products are an excellent source of therapeutic products which has led to the discovery of many important drugs that play an important role in the treatment of various human diseases.
Chandra Mohan Singh Bisht +7 more
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Eurasian Chemico-Technological Journal, 2003 New bifunctional oligomers bearing peroxy groups have been synthesized by telomerization in one step reaction. For obtaining oligoperoxides (PO) by telomerization method, epoxide compounds will react with substances containing labile hydrogen atom. Using
M. M. Bratychak +2 more
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Фізика і хімія твердого тіла, 2017 The comparative analysis of definition of stress state of epoxy compounds by hydrostatic shrinkage and tensometric deformationhas been done. The results of the shrinkage coefficient depending on the selected calculation formula have been shown.Key words ...
H. O. Sirenko +3 more
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Studies of Thermal Stability of Epoxy Compounds for Glass-Fiber Pipes
, 2017 1 Thermal stability of different epoxy compounds designed for their use in certain temperature ranges has been studied. Effects of temperature are reported upon physico-mechanical properties of pipes, in particular, their failure stress under axial ...
O. Karandashov, V. Avramenko
semanticscholar +1 more source
Processing waste printed circuit boards for material recovery [PDF]
, 2007 PURPOSE We have investigated the use of pyrolysis for the processing of waste printed circuit boards (PCBs). The aim was to make the process of separating the organic, metallic, and glass fibre fractions of PCBs much easier and therefore make ...
Hall, W.J., Williams, P.T
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Reinforcing styrene butadiene rubber with lignin-novolac epoxy resin networks
eXPRESS Polymer Letters, 2015 In this study, lignin-novolac epoxy resin networks were fabricated in the styrene butadiene rubber (SBR) matrix by combination of latex compounding and melt mixing. Firstly, SBR/lignin compounds were co-coagulated by SBR latex and lignin aqueous solution.
P. Yu +6 more
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ACS Sustainable Chemistry and Engineering, 2022 In the area of coating development, it is extremely difficult to find a substitute for bisphenol A diglycidyl ether (DGEBA), the classical petroleum-based raw material used for the formulation of epoxy thermosets.
Vitor Bonamigo Moreira +7 more
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Synergistic effects of zinc borate and aluminiumtrihydroxide on flammability behaviour of aerospaceepoxy system [PDF]
, 2009 The flame retardancy of mono-component epoxy resin (RTM6), widely used for aerospace composites, treated with zinc borate (ZB), aluminium trihydroxide (ATH) and their mixtures at different concentrations have been investigated by morphological and ...
Camino, Giovanni +5 more
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Über die Synthese neuer Epoxyverbindungen
CHIMIA, 1962 Firstly, the different types of epoxy compounds are considered : • Glycidyl ethers, esters, and amines. • Epoxydation products: a) linear aliphatic epoxides, epoxidised fatty acids and fatty acid derivatives and epoxidised polybutadienes; b ...
Hans Batzer, Erwin Nikles
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