摘要
合成了一系列含有反应活性端基的改性聚乙二醇 ,并用其对 BMC(团状模塑料 )专用的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 ,在显著提高不饱和聚酯的韧性的同时 ,基本保持了材料的模量及其它力学性能 .用动态力学分析 ( DMA)
A series of reactive maleic anhydride terminated polyethylene glycol was synthesized and used as a toughening modifier of the unsaturated polyester specified for Bulk Moulding Compounds (BMC). It was shown that the toughening modifier could participate in the curing reaction of the unsaturated polyester and construct different lengths of soft segments in the network, which has significantly increased the impact strength of the unsaturated polyester, whereas other mechanical properties such as tensile strength, flexural strength and modulus remain unchanged. The dynamic mechanical behavior of the cross-linked unsaturated polyester network was investigated by DMA.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第5期948-951,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金 (批准号 :5 962 5 3 0 7)
广东省教育厅"千百十人才"专项基金(批准号 :Q0 2 0 14 )项目 )资助
