The use of Tetraalkylphosphonium-Tetrafluoroborate-Tetrafluoroboric Acid in the curing of a liquid crystalline epoxy resin

Synthesis and Properties of a Liquid Crystalline Thermoset Epoxy Resin Containing 1,3,4-Oxadiazole Groups

“…Mesogens with epoxy [7][8][9][10], acrylate and methacrylate [11][12][13] and nadimide [14][15][16][17][18], vinyl [19,20], isocyanate and cyanate ester [21][22][23][24], and ethynyl [25][26][27] end groups have been investigated. Studies have examined the effect of molecular architecture on the liquid crystalline phases in the monomers [15,[24][25][26][27][28], cure reactions in ordered phases [29][30][31][32][33], mechanical properties [9,[34][35][36][37][38][39], diffusion behavior [9,40,41], alignment by external fields [11,37,[42][43][44][45] and optical properties…”

Two ways of synthesis of polymer networks based on diglycidyl ether of bisphenol A, bisphenol A, and sulfanilamide: Kinetics study

“…During the first 2 h, the reaction rate is low and then increases. This low initial reaction rate can be explained by the fact that the catalyst used in this work can quickly associate with hydroxyl and epoxyde groups (and also with amino or amido groups, if they are present) at room temperature25 and the reactivities of these intermediates have different temperature dependencies. Nearly full conversion of the monomers is reached after 5 h at 135°C.…”

“…This fact can be explained by the superposition of the reaction between epoxy and amido functions, but also by a lower number of functions able to associate with the catalyst. At this temperature, it has been shown that the catalyst has no influence on the kinetics of the reaction between epoxy and amino or epoxy and amido functions 25…”

Influence of sequence of chemical reactions on kinetics and solid state behavior for bisphenol A diglycidyl ether—bisphenol A—sulfanilamide ternary blends

“…This fact can be explained by the superposition of reactions between epoxy and amide functions, and also by a lower amount of functions capable to associate with the catalyst. At this temperature it has been shown that the catalyst has no influence on the kinetics of reaction between epoxy and amino or epoxy and amide functions [27]. 183 x th = × = 2 5 8 100 31 2 .…”