磺酸基对煤/PAN复合材料导电性能的影响  

Effect of functional sulfonic group on the conductivity of coal/PAN composite

作　　者：樊晓萍[1] 周安宁[1] 葛岭梅[1] 

机构地区：[1]西安科技大学化学与化工学院,西安710054

出　　处：《化工新型材料》2009年第9期99-100,119,共3页New Chemical Materials

基　　金：国家教育部基金资助项目(00232);陕西省教委纳米专项项目(CL00156)

摘　　要：研究了两种在煤/聚苯胺(PAN)复合材料聚合中引入磺酸基的方法,通过电导率对比可知,两种方法都有利于提高煤/PAN复合材料的电导率。这是因为质子酸的掺杂使聚苯胺分子内及分子间的电荷离域化增强,电导率大幅度提高;另一方面,磺酸基较大,掺杂到聚苯胺中,降低了聚苯胺分子间的相互作用力,聚苯胺分子以伸展链构象存在,更有利于其电荷离域化,从而使其具有更高的电导率。Two methods of introducing sulfonie groups into coal were investigated. From conductivity comparison, both methods were proved to be benefit to improve the conductivity of Coal/PAN. Proton acids doping caused the intermolecular and inner-molecular delocatization in PAN and improved the conductivity. On the other hand, the sulfonic groups were relatively large, the inter-molecular action of PAN was decreased with sulfonic groups doping in PAN. The extension state of PAN molecules conformational also enhanced the charge delocalization, and then increased the conductivity.

关 键 词：磺酸基 煤/PAN 电导率 

分 类 号：TB332[一般工业技术—材料科学与工程]