Synthesis of conducting polyaniline-montmorillonite nanocomposites via inverse emulsion polymerization in supercritical carbon dioxide
Synthesis of conducting polyaniline-montmorillonite nanocomposites via inverse emulsion polymerization in supercritical carbon dioxide
复制标题
超临界二氧化碳反相乳液聚合合成导电聚苯胺-蒙脱石纳米复合材料
DOI：
10.1002/pc.20783
复制
发表时间：
2009-03
影响因子：
5.2
通讯作者：
Fu Sun, Yuejin Pan, Jing Wang, Qingzhi Dong
中科院分区：
文献类型：
--
作者：
Fu Sun, Yuejin Pan, Jing Wang, Qingzhi Dong
采用反相乳液聚合法在超临界二氧化碳（SCCO 2）中制备了聚苯胺-蒙脱土（PANI-MMT）纳米复合材料。研究了蒙脱土层间化学基团对插层超临界CO2的影响。不同阳离子表面活性剂改性的蒙脱土以未插层、部分脱层或完全剥离的状态嵌入到复合粒子中。胺化的MMT或氟化的MMT用于制备导电PANI-MMT纳米复合材料，其具有高度浓缩的（12-25重量%负载到单体），在SCCO 2中完全剥离的MMT片晶。采用傅里叶变换红外光谱（FTIR）、X射线粉末衍射（XRD）和透射电子显微镜（TEM）对聚苯胺-蒙脱土纳米复合材料的结构和形貌进行了表征。热重分析（TGA）进行证明的复合材料的热稳定性的增强。SCCO 2对蒙脱土的浸渍、解聚和剥离作用均优于异辛烷，说明SCCO 2是合成插层复合材料的替代溶剂，这不仅是基于SCCO 2的环境友好性，而且也是由于SCCO 2在插层聚合中的重要作用。Polym.比较器：2010.© 2009年塑料工程师协会
A new inverse emulsion polymerization and intercalation procedure in supercritical carbon dioxide (SCCO2) was initially employed to synthesize polyaniline-montmorillonite (PANI-MMT) nanocomposites. The effect of chemical groups in MMT galleries on intercalation in SCCO2 was investigated. The MMTs modified by different organic cationic surfactants were incorporated into the composite particles, and in unintercalated, partially delaminated or fully exfoliated state. The aminated MMT or fluorinated MMT were utilized to prepare conducting PANI-MMT nanocomposites with highly concentrated (12–25 wt% loading to monomer), fully exfoliated MMT platelets in SCCO2. The structure and morphology of PANI-MMT nanocomposites were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray powder diffraction pattern (XRD), and transmission electron microscope (TEM). Thermogravimetry analysis (TGA) was performed to demonstrate the enhancement of thermal stability of the composites. SCCO2 was shown to be more effective for impregnation, disaggregation and exfoliation of MMTs than isooctane, which indicates that SCCO2 is an alternative solvent for synthesis of some intercalated composite materials, not only based on the environmental friendly characteristic of SCCO2, but also owing to that SCCO2 can play an important role in intercalative polymerization. POLYM. COMPOS., 2010. © 2009 Society of Plastics Engineers
登录
查看更多内容
影响因子：
5.5
作者：
do Nascimento, GM;Constantino, VRL;Temperini, MLA
通讯作者：
Temperini, MLA
DOI：
10.1006/jcis.1993.1277
发表时间：
1993-07
期刊：
--
影响因子：
--
作者：
M. López‐Quintela;J. Rivas
通讯作者：
M. López‐Quintela;J. Rivas
影响因子：
5.2
作者：
Lei Liu;Lei Song;Yuan Hu;Hao Chen
通讯作者：
Lei Liu;Lei Song;Yuan Hu;Hao Chen
影响因子：
4.4
作者：
S. Yoshimoto;F. Ohashi;Y. Ohnishi;T. Nonami
通讯作者：
S. Yoshimoto;F. Ohashi;Y. Ohnishi;T. Nonami
影响因子：
5.5
作者：
Adam S. Zerda;T. Caskey;A. Lesser
通讯作者：
Adam S. Zerda;T. Caskey;A. Lesser