Novel polyanhydrides with enhanced thermal and solubility properties
Novel polyanhydrides with enhanced thermal and solubility properties
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DOI：
10.1021/ma000291w
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发表时间：
2000-08-22
期刊：
影响因子：
5.5
通讯作者：
Uhrich, KE
中科院分区：
文献类型：
--
作者：
Anastasiou, TJ;Uhrich, KE
以邻、对羟基苯甲酸为原料，通过熔融缩聚反应合成了一系列邻、间、对二甲苯基聚酸酐。前体，单体和聚合物的特征在于通过NMR和IR光谱，元素和热重分析，和热转变温度。含有对二甲苯和对羟基苯甲酸的聚合物是相对不溶的，具有高的T-g。相比之下，基于邻羟基苯甲酸的含有邻二甲苯基和间二甲苯基部分的聚合物表现出良好的溶解性和低于100 ℃的T-g。
A series' of polyanhydrides based on o-, m-, and p-xylenes as derived from o- and p-hydroxybenzoic acids were synthesized by melt-condensation polymerization. Precursors, monomers, and polymers were characterized by NMR and IR spectroscopies, elemental and thermogravimetric analyses, and thermal transition temperatures. Polymers containing p-xylenes and p-hydroxybenzoic acids were relatively insoluble with high T-g's. In contrast, polymers containing o- and m-xylyl moieties based on o-hydroxybenzoic acids exhibit good solubilities and T-g's below 100 degrees C.