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Epoxy/Anhydride Networks Modified by Epoxy/Anhydride Oligomers Containing SiOH Groups

机译:含SiOH基团的环氧/酸酐低聚物修饰的环氧/酸酐网络

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摘要

Epoxy/anhydride oligomers containning variable amounts of trialkoxysilane proups were synthesized from phenyl glycidyl ether (PGE),3-glycidoxypropyl trimethoxysilane (GPMS),and methyl tetrahydrophthalic anhydride (MTHPA),using benzyldimethylamine (BDMA)as an initiator.They were hydrolyzed and partially condensed using diluted fromic as a catalyst, with the last step carried out in a solution of diglycidyl ether of bisphenol A(DGEBA).By curing with a stoichiometric amount of MTHPA, in the presence of BDMA,plasticized epoxy/anhydride networks were obtained without any evidence of phase separation.These materials showed a better abrasion resistance than that of the neat matrix.The presence of free SiOH groups can be used to improve the adhesion to glass surfaces.
机译:以苯甲基缩水甘油醚(PGE),3-环氧丙氧基丙基三甲氧基硅烷(GPMS)和甲基四氢邻苯二甲酸酐(MTHPA)为原料,以苄基二甲基胺(BDMA)为引发剂,合成了含不同量的三烷氧基硅烷单体的环氧/酸酐低聚物。使用稀释的离子化甲醛作为催化剂进行缩合,最后一步在双酚A(DGEBA)的二缩水甘油醚溶液中进行。通过化学计量的MTHPA固化,在BDMA存在下,获得增塑的环氧/酸酐网络这些材料显示出比纯基质更好的耐磨性。游离SiOH基团的存在可用于改善与玻璃表面的粘合性。

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