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首页> 外文期刊>Journal of Applied Polymer Science >High glass transition temperature bismaleimide-triazine resins based on soluble amorphous bismaleimide monomer
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High glass transition temperature bismaleimide-triazine resins based on soluble amorphous bismaleimide monomer

机译：基于可溶性无定形双马来酰亚胺单体的高玻璃化转变温度双马来酰亚胺-三嗪树脂

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摘要

A novel bismaleimide (DOPO-BMI) with unsymmetrical chemical structure and DOPO pendant group has been prepared. The particular molecular structure makes DOPO-BMI show an intrinsic amorphous state with a T-g about 135 degrees C and excellent solubility in most organic solvents, which is beneficial to the processability of bismaleimide composite materials. A series of bismaleimide-triazine (BT) resins have been prepared based on DOPO-BMI and 2,2-bis(4-cyanatophenyl) propane at various weight ratios. The prepared BT resins show outstanding solubility in organic solvent and low viscosity about 10-671 mPa s at 180 degrees C. The cured BT resins exhibit high glass transition temperature (T-g) over 316 degrees C. As the weight ratio of DOPO-BMI increases to 80% (BT80), the T-g can rise to 369 degrees C (tan delta). The cured BT resins also show good thermal stability with the 5% weight loss temperature over 400 degrees C under both nitrogen and air atmosphere. (C) 2015 Wiley Periodicals, Inc.
机译：制备了具有不对称化学结构和DOPO侧基的新型双马来酰亚胺（DOPO-BMI）。特定的分子结构使DOPO-BMI表现出固有的无定形状态，T-g约为135℃，并且在大多数有机溶剂中具有优异的溶解性，这有利于双马来酰亚胺复合材料的可加工性。已经基于DOPO-BMI和2，2-双（4-氰基苯基）丙烷以各种重量比制备了一系列双马来酰亚胺-三嗪（BT）树脂。制备的BT树脂在有机溶剂中显示出出色的溶解性，并在180摄氏度下具有约10-671 mPa s的低粘度。固化的BT树脂在316摄氏度以上的玻璃化转变温度（Tg）高。随着DOPO-BMI重量比的增加达到80％（BT80）时，Tg可以升至369摄氏度（tanδ）。固化的BT树脂在氮气和空气气氛下，在400摄氏度以上的5％失重温度下，也显示出良好的热稳定性。 （C）2015威利期刊公司

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