合成了一种含有反应活性端基的聚乙二醇,并用之对高交联度不饱和聚酯进行增韧.结果表明,含有反应性马来酸酐端基的聚乙二醇参与了不饱和聚酯的固化反应,可在交联网络中构成不同长度的柔性链段,从而显著地提高了不饱和聚酯的韧性.将其应用于BMC材料的增韧也获得了满意的增韧效果.
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