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Aromatic bisphenolA-basedelastomers via hydrosilylation chemistry

机译:芳香族双酚醛化合物通过氢化硅烷化化学品

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摘要

The preparation of highly aromatic elastomers from a bisphenol A-based divinyl-terminated resin and polymerization with various aromatic silane containing compounds utilizing a room temperature hydrosilylation reaction is demonstrated. The polymers exhibit high thermal and oxidative stability with 5% weight losses around 430 and 350 degrees C and char yields ranging from 35% to 40%. The thermosets maintained their elastomeric properties with good hardness and mechanical properties as measured by elongation measurements. The toughness of the thermosets was not improved with the inclusion of aromatic moieties but the hardness did appear to increase with the addition of more aromatic groups.
机译:证明了用双酚a基二乙烯基封端树脂制备高芳香弹性体,并利用室温硅氢加成反应与各种含芳香族硅烷的化合物聚合。聚合物表现出很高的热稳定性和氧化稳定性,在430℃和350℃左右失重5%,焦炭产率在35%到40%之间。通过伸长率测量,热固性塑料保持了良好的硬度和机械性能。加入芳香基团后,热固性树脂的韧性没有提高,但硬度似乎随着更多芳香基团的加入而增加。

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