高等学校化学学报 ›› 2012, Vol. 33 ›› Issue (09): 2106-2110.doi: 10.3969/j.issn.0251-0790.2012.09.040

• 高分子化学 • 上一篇    下一篇

“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

张志明, 李琼, 王月, 崔志洁, 于良民   

  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
  • 收稿日期:2011-11-21 出版日期:2012-09-10 发布日期:2012-08-14
  • 通讯作者: 张志明,女,博士,教授,博士生导师,主要从事导电聚合物微/纳米结构研究.E-mail:zzmcyj@ouc.edu.cn于良民,男,博士,"长江学者"特聘教授,博士生导师,主要从事新型海洋功能材料研究.E-mail:yuyan@ouc.edu.cn E-mail:zzmcyj@ouc.edu.cn; yuyan@ouc.edu.cn
  • 基金资助:

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

Synthesis and Characterization of Electromagnetic Functionalized Polyoyrrole/γ-Fe2O3 Nanospheres by Chemical One-step Method

ZHANG Zhi-Ming, LI Qiong, WANG Yue, CUI Zhi-Jie, YU Liang-Min   

  1. College of Chemistry and Chemical Engineering, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
  • Received:2011-11-21 Online:2012-09-10 Published:2012-08-14

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.

关键词: "化学一步法", 电磁功能化, 聚吡咯/γ-Fe2O3, 微/纳米结构

Abstract:

A "Chemical one-step method" (COSM) was used to prepare the electromagnetic functionalized polypyrrole/γ-Fe2O3(PPy/γ-Fe2O3) nanospheres without any dopant. In this method, FeCl3 acted as an oxidant for the polymerization of pyrrole and as a source of γ-Fe2O3, which also required the initial presence of Fe(Ⅱ), provided by the addition of FeCl2. In this paper, the amount of FeCl2 had little effect on the morphology; however, the conductive and magnetic properties of PPy/γ-Fe2O3 nanospheres were greatly affected by the amount of FeCl2. The conductive and magnetic properties of PPy/γ-Fe2O3 nanospheres increased and reached maximum values simultaneously with increasing amounts of FeCl2. The resulting electromagnetic PPy/γ-Fe2O3 nanospheres show maximum conductivity of 72.1 S/cm and saturation magnetization of 10.07 A·m2/kg.

Key words: Chemical one-step method, Electromagnetic function, Polyoyrrole/γ-Fe2O3, Micro/nanostructure

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