通过原位化学聚合法制备了聚3-戊酰基吡咯（PVPy）／多壁碳纳米管（MWNTs）复合材料，利用傅里叶变换红外光谱（FT－IR）、X射线衍射（XRD）、扫描电镜（SEM）、透射电镜（TEM）、热重分析（TGA）与四探针法对样品的结构和性能进行了研究，FT－IR表明，PVPy与MWNTs分子问存在相互作用力，TEM显示，3－戊酰基吡咯（VPy）单体仅在MWNTs的外表面发生聚合，XRD谱显示，PVPy／MWNTs复合材料中MWNTs的两个特征结晶峰强度随着VPy／MWNTs原料比增加而逐渐降低，主要表现出PVPy的结晶峰，电导率测试结果表明，通过MWNTs与PVPy复合，可以显著的提高PVPy／MWNTs复合材料的导电性，其电导率分别为2．37S／cmrVPv／MWNTs=2．5／1）与0．25S／cm（VPv／MWNTs＝5／11。
Poly (3-valerylpyrrole) (PVPy)/multi-wall carbon nanotubes (MWNTs) composites have been pre- pared by in situ chemical polymerization of 3-valerylpyrrole (VPy) on MWNTs. The structure and properties of the samples were studied by FT-IR,XRD,SEM,TEM,TGA and four probe method. FT-IR suggested an exist- ence of interaction between PVPy and MWNTs. TEM indicated that PVPy was only coated on the external sur- face of MWNTs. XRD patterns implied that the intensity of the peaks at around 25.82~ and 42.92~ decreased with the increase of the mass ratio of VPy to MWNTs. In addition,the electrical conductivity of the samples was investigated at room temperature, and the results exhibited that MWNTs enhanced the conductivity of PVPy/ MWNTs composites compared to PVPy. The conductivity of PVPy/MWNTs composites was 2.37 S/cm( VPy: MWNTs = 2.5: 1 ) and 0.25 S/cm ( VPy: MWNTs = 5: 1 ), respectively.
参考文献
| [1] | 杨继敏,孙培梅,童军武,张佼阳.碳纳米管/聚合物纳米复合材料研究进展[J].金属材料与冶金工程,2010(03):60-64. |
| [2] | Bao Tianjiao;Zhao Yan;Su Xiaofeng .A study of the electromagnetic properties of Cobalt-multiwalled carbon nanotubes (Co-MWCNTs) composites[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2011(12):906-912. |
| [3] | Nanda Gopal Sahoo;Yong Chae Jung;Hyang Hwa So .Polypyrrole coated carbon nanotubes: Synthesis, characterization, and enhanced electrical properties[J].Synthetic Metals,2007(8/9):374-379. |
| [4] | Synthesis and characterization of conductive polypyrrole/multi-walled carbon nanotubes composites with improved solubility and conductivity[J].Composites science and technology,2009(5):639. |
| [5] | Mohammad Rezaul Karim;Chul Jae Lee;A.M. Sarwaruddin Chowdhury .Radiolytic synthesis of conducting polypyrrole/carbon nanotube composites[J].Materials Letters,2007(8/9):1688-1692. |
| [6] | Jie Wang;Youlong Xu;Xi Chen .Capacitance properties of single wall carbon nanotube/polypyrrole composite films[J].Composites science and technology,2007(14):2981-2985. |
| [7] | 张小青,李刚.碳纳米管/聚合物基复合材料的研究进展[J].黑龙江科技信息,2011(10):79,133. |
| [8] | Chao Yang;Peng Liu .Polypyrrole/conductive mica composites: Preparation, characterization, and application in supercapacitor[J].Synthetic Metals,2010(7/8):768-773. |
| [9] | Dacheng Zhang;Xiong Zhang;Yao Chen;Peng Yu;Changhui Wang;Yanwei Ma .Enhanced capacitance and rate capability of graphene/polypyrrole composite as electrode material for supercapacitors[J].Journal of Power Sources,2011(14):5990-5996. |
| [10] | Aihua Sun;Zhixiang Li;Tiefeng Wei;Yong Li;Ping Cui .Highly sensitive humidity sensor at low humidity based on the quaternized polypyrrole composite film[J].Sensors and Actuators, B. Chemical,2009(1 Pt.B):197-203. |
| [11] | Cunrui Zhang;Qiaoling Li;Jianqiang Li .Synthesis and characterization of polypyrrole/TiO_2 composite by in situ polymerization method[J].Synthetic Metals,2010(15/16):1699-1703. |
| [12] | 张志刚,吴洪才,张赞锋,易文辉.聚3-乙酰基吡咯的合成、表征及其三阶非线性光学效应研究[J].精细化工,2004(05):324-326,341. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%