文献类型：期刊文献

英文题名：Formation of polymer/carbon nanotubes nano-hybrid shish-kebab via non-isothermal crystallization

作者：Zhang, Ling[1];Tao, Tao[1];Li, Chunzhong[1]

机构：[1]E China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2009

卷号：50

期号：15

起止页码：3835

外文期刊名：POLYMER

收录：;EI(收录号：20092912199187);WOS:【SCI-EXPANDED(收录号:WOS:000268306700054)】；

基金：This work was supported by the National Natural Science Foundation of China (20706015, 50703009), the Shanghai Rising-Star Program (07QA14014), the Major Basic Research Project of Shanghai (07DJ14001), the Ph.D. Programs Foundation of Ministry of Education of China (20070251022), the Special Projects for Key Laboratories in Shanghai (07DZ22016), the Special Projects for Nanotechnology of Shanghai (0752nm010, 0852nm02000), the Program of Shanghai Subject Chief Scientist (08XD1401500) Shanghai Shuguang Scholars Tracking Program(08GG09) and Shanghai Leading Academic Discipline Project, Project Number: B502.

语种：英文

外文关键词：Nano-hybrid shish-kebab; Carbon nanotubes; Non-isothermal crystallization

摘要：Multi-walled carbon nanotubes (MWNTs) periodically decorated with polyethylene (PE) lamellar crystals had been prepared using the non-isothermal crystallization method. The morphology and structure of polyethylene attached to MWNTs were investigated by means of transmission electron microscopy (TEM). A nano-hybrid shish-kebab (NHSK) structure was observed wherein the average diameter of PE lamellar crystals varies from 30 to 150 nm with average periodicity of 35-80 nm. The TEM images of samples obtained at 125 degrees C showed that MWNTs were first wrapped by a homogeneous coating of PE with few subglobules, then PE chains epitaxially grew from the subglobule and formed lamellar crystals perpendicular to the carbon nanotube axis. It is Suggested that the homogeneous coating plays a key role in the formation of NHSK structures. And the formation process was discussed based on the intermediate state images of samples obtained at 95 degrees C. While NHSK structures cannot be formed by using polypropylene (PP). This may attribute to the zigzagged conformation of PP chains on the surface of MWNTs, which hinders the formation of homogeneous coating of PP on it. (C) 2009 Elsevier Ltd. All rights reserved.