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The catalytic effect of Bu_2SnO-Bu_3PO_4 condensates for the curing of epoxy resin/diamino diphenyl sulfone (DDS) system

机译:Bu_2SnO-Bu_3PO_4缩合物对环氧树脂/二氨基二苯砜(DDS)体系固化的催化作用

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摘要

Epoxy resin/DDS systems are of great importance for thehigh performance composites and adhesives. However, owing to the electron withdrawing character of the sulfone group, DDS is sluggish toward the epoxy group, and therefore a high cure temperature is usually required.
机译:环氧树脂/ DDS系统对于高性能复合材料和粘合剂至关重要。然而,由于砜基团的吸电子特性,DDS向环氧基团缓慢,因此通常需要较高的固化温度。

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