不同温度处理的糠醇和聚苯胺树脂碳化产物结构基因变化的红外光谱研究

红外光谱测试结果表明糖醇树脂碳化过程中五员杂环上的碳氧键首先发生断裂，使氧脱出，而剩余的双烯链状结构再进行重排，形成六员稠环结构，并在此基础上发生脱氢反应生成石墨微晶。测试结果还表明聚苯胺树脂中的氮在碳化过程中的稳定性与其相连结的基团结构有密切关系。苯环相连的氮比与苯酚基相连的氮具有更强的抗热解稳定性。聚苯胺碳化产物中的氢主要分为两大类：一类是以碳氢键的形式存在；另一类则是以氮氢键的形式存在。碳化产物中的氢主要是在苯的稠环结构上以碳氢键形式存在。

Study of Structural Groups of Carbonized Products of Furfuralcohol Resin and Polyaniline Resin by IR Method

IR analysis indicated that the C-O bonds of five ring structure in furfuralcohol resin were first broken and the oxygen escaped from the resin during the resin carbonized process, meanwhile the recomposition of the residual diolefine chain structure was taken place, and hexaatomic fused rings were build. Then, the graphite minicrystals were formed by dehydrogenation. The test results also indicated that the nitrogen stability of polyaniline resin during carbonized process was associated with the structure of the nitrogen interlinked group. The nitrogen conjoint with benzene ring had the much more temperature resistant stability than nitrogen conjoint with quinone structural group. The hydrogen of resin carbon derived from polyaniline resin could be divided into two types: one existed as C-H form; the another existed as N-H form. The hydrogen of the resin carbon was mostly existed as C-H from in benzene fused rings.