摘要
在多壁碳纳米管(MWNT)表面键接可用于原子转移自由基聚合(ATRP)的引发剂,并以此引发甲基丙烯酸缩水甘油酯(GMA)在MWNT表面的ATRP。利用红外光谱(FT-IR)、核磁共振(1H-NMR)和透射电镜(TEM)对接枝聚合物MWNT的结构和外观形貌进行了研究。接枝在MWNT表面的PGMA与过量的乙二胺发生开环反应,生成具有吸附金属离子能力的MWNT,在还原剂的作用下,得到聚合物包覆的Ag/MWNT杂化材料,并用TEM、扫描电镜(SEM)观察杂化材料的外观形貌。结果表明,用文中介绍的方法制备金属杂化的MWNT简便易得。
The polymer-coated multiwalled carbon nanotubes（MWNTs） were prepared by surface-initiated atom transfer radical polymerization（ATRP） of glycidyl methacrylate（GMA）.Fourier transform infrared spectrum（FT-IR）,1H nuclear magnetic resonance spectrum（1H-NMR）,and transmission electron microscope（TEM） were used to investigate the chemical structure,morphology of polymer-coated MWNTs（MWNT-PGMA）.PGMA immobilized on the MWNTs surface was reacted with excess ethylenediamine to prepare multiamine-functionalized MWNTs（MWNT-NH2）,which was used as the precursor of sequestering metal ion.Polymer/Ag hybrid MWNTs（MWNT/Ag） composites were prepared by reducing the Ag＋ sequestered by side amine group of PGMA on the MWNTs surface,in the present of NaBH4.TEM and scanning electron microscope（SEM） were used to observe the morphology of resulting nanocomposites.In conclusion,the preparation of polymer/Ag hybrid MWNTs described in this paper is accessible.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2011年第2期19-22,共4页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(50573016)
合肥工业大学青年基金资助项目(060608F)
关键词
多壁碳纳米管
原子转移自由基聚合
表面接枝
银纳米粒子
multiwalled carbon nanotubes
atom transfer radical polymerization
surface graft
silver nanoparticles
