Promoting the responsive ability of carbon nanotubes to an external stress field in a polypropylene matrix: A synergistic effect of the physical interaction and chemical linking

doi:10.1039/c1jm14474j

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	Promoting the responsive ability of carbon nanotubes to an external stress field in a polypropylene matrix: A synergistic effect of the physical interaction and chemical linking
	Wang, Yujie 1,2; Wen, Xin 1; Wan, Dong 1,2; Zhang, Zhijie 1; Tang, Tao 1
刊名	JOURNAL OF MATERIALS CHEMISTRY
	2012
卷号	22 期号:9 页码:3930-3938
ISSN号	0959-9428
DOI	10.1039/c1jm14474j
英文摘要	An original and simple method for promoting mobility sensitivity of carbon nanotubes (CNTs) to an external stress field in polypropylene (PP) matrix was developed. In particular, an interfacial melt reaction initiated by free radicals were used as a tool to prepare PP/CNTs nanocomposites. The presence of tetrakis(phenylmethyl)thioperoxydi(carbothioamide) (TBzTD) increased the interfacial reaction between the PP chains and the CNTs. In addition, the grafted TBzTD to PP backbone could form a physical interaction with CNTs via a pi-pi interaction. In this case, the CNTs were not only well dispersed in the PP matrix during melt-mixing, but also the mobility of dispersed CNTs showed a strong responsive ability to the external stress field in the resultant nanocomposites. As a result, the orientation of CNTs was easily induced in the PP matrix under a weak stress field, such as mold pressing or injection molding. Further research showed that the strong mobility sensitivity of CNTs to an external stress field resulted from a synergistic effect of the physical interaction and chemical linking between CNTs and PP chains. As expected, the toughness of the PP/CNT nanocomposites was dramatically improved when compared with neat PP according to a notched Izod impact test, due to the strong sensitivity of the CNT mobility to an external stress field.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000300187000036
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/49621]
专题	中国科学院化学研究所
通讯作者	Tang, Tao
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yujie,Wen, Xin,Wan, Dong,et al. Promoting the responsive ability of carbon nanotubes to an external stress field in a polypropylene matrix: A synergistic effect of the physical interaction and chemical linking[J]. JOURNAL OF MATERIALS CHEMISTRY,2012,22(9):3930-3938.
APA	Wang, Yujie,Wen, Xin,Wan, Dong,Zhang, Zhijie,&Tang, Tao.(2012).Promoting the responsive ability of carbon nanotubes to an external stress field in a polypropylene matrix: A synergistic effect of the physical interaction and chemical linking.JOURNAL OF MATERIALS CHEMISTRY,22(9),3930-3938.
MLA	Wang, Yujie,et al."Promoting the responsive ability of carbon nanotubes to an external stress field in a polypropylene matrix: A synergistic effect of the physical interaction and chemical linking".JOURNAL OF MATERIALS CHEMISTRY 22.9(2012):3930-3938.