“化学一步法”制备电磁功能化聚吡咯/γ-Fe2O3复合物纳米球及结构表征  

Synthesis and Characterization of Electromagnetic Functionalized Polyoyrrole/γ-Fe_2O_3 Nanospheres by Chemical One-step Method

作　　者：张志明[1] 李琼[1] 王月[1] 崔志洁[1] 于良民[1] 

机构地区：[1]中国海洋大学化学化工学院,海洋化学理论与工程技术教育部重点实验室,青岛266100

出　　处：《高等学校化学学报》2012年第9期2106-2110,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:50973098);海洋公益基金(批准号:201005028-2);国家科技支撑计划(批准号:2012BAB15B02)资助

摘　　要：在不添加掺杂剂的条件下,以吡咯为单体,三氯化铁为氧化剂,采用"化学一步法"合成了电磁功能化的聚吡咯/γ-Fe2O3复合物纳米结构.研究了不同氯化亚铁用量对聚吡咯/γ-Fe2O3复合物形貌、电学性能以及磁学性能的影响.结果表明,氯化亚铁的用量对聚吡咯/γ-Fe2O3复合物的形貌影响不大,都得到了聚吡咯/γ-Fe2O3复合物纳米球;然而,聚吡咯/γ-Fe2O3复合物纳米球的电学和磁学性能却明显受到氯化亚铁用量的影响.聚吡咯/γ-Fe2O3复合物纳米球的电导率和最大饱和磁化强度随着氯化亚铁用量的增加而增大,并在氯化亚铁用量增加到150 mg时达到最大值,分别为72.1 S/cm和10.07 A.m2/kg,实现了高电学性能和高磁学性能兼顾的电磁功能化导电聚合物纳米结构的制备.A ＂Chemical one-step method＂ （COSM） was used to prepare the electromagnetic functionalized polypyrrole/y-Fe203（PPy/T-Fe203） nanospheres without any dopant. In this method, FeC13 acted as an oxidant for the polymerization of pyrrole and as a source of T-Fe203, which also required the initial presence of Fe（ Ⅱ）, provided by the addition of FeCI2. In this paper, the amount of FeC12 had little effect on the morphology; however, the conductive and magnetic properties of PPy/T-Fe203 nanospheres were greatly affected by the amount of FeC12. The conductive and magnetic properties of PPy/T-Fe203 nanospheres increased and reached maximum values simultaneously with increasing amounts of FeC12. The resulting electromagnetic PPy/ y-Fe203 nanospheres show maximum conductivity of 72. 1 S/cm and saturation magnetization of 10. 07 A . m2/kg.

关 键 词：“化学一步法” 电磁功能化 聚吡咯/γ-Fe2O3 微/纳米结构 

分 类 号：O631[理学—高分子化学]