乳液聚合法制备聚苯胺/纳米石墨薄片/Eu^3＋纳米复合材料及其导电性能  

Synthesis and characterization of polyaniline/graphite nanosheets/Eu^(3+) nanocomposites through emulsion polymerization

作　　者：莫尊理[1] 吴迎冰[1] 陈红[1] 牛贵平[1] 

机构地区：[1]西北师范大学化学化工学院,甘肃省高分子材料重点实验室,甘肃兰州730070

出　　处：《功能材料》2008年第1期127-129,132,共4页Journal of Functional Materials

基　　金：甘肃省科技攻关资助项目(2GS064-A52-036-08);甘肃省自然科学基金重点资助项目(3ZS051-A25-050)

摘　　要：与传统乳液聚合法不同,采用现场乳液聚合法,直接将纳米石墨薄片在超声条件下有机改性。将无机物的有机改性、对甲苯磺酸的掺杂及苯胺单体的聚合同步进行,即制得目标产物。通过红外光谱(FT-IR)、扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(XRD)和热重(TG)对该复合材料进行了表征和分析。结果表明,聚苯胺成功插层到纳米石墨薄片中,并形成了纳米薄膜,Eu3+分散在纳米膜中。热重(TG)分析和电导率测试结果表明,复合材料的热稳定性和导电性均较纯聚苯胺高。The polyaniline/graphite nanosheets/Eu^3＋ nanocomposite is prepared through emulsion polymerization. Graphite nanoshees is directly organised with sonication, using p-toluene-sulfonic acid as dopant, （NH4）2S2O8 as inducing reagent and the polymerization of aniline monomer simultaneously. The nanocomposite is characterized and analysed by FT-IR,SEM,TEM,XRD and TG. These results show that PANI have succeeded in intercalating NanoGs,and the nanocomposite has informed nanofilms and also the Eu^3＋ has been successfully dispersed in the nanofilms. The thermal stability and electrical conductivity of PANI/NanoGs/Eu^3＋ nanocomposite are greatly increased compared with pure PANI.

关 键 词：纳米复合材料 乳液聚合法 聚苯胺 纳米石墨薄片 

分 类 号：O613.71[理学—无机化学]