文献类型：期刊文献

英文题名：In situ synthesis and characterization of poly(2,5-benzoxazole)/multiwalled carbon nanotubes composites

作者：Xie, Zhong[1]; Zhuang, Qixin[1]; Wang, Qing[2]; Liu, Xiaoyun[1]; Chen, Yi[1]; Han, Zhewen[1]

机构：[1] Key Lab. for Specially Funct. Polymeric Mat. and Related Technology of the Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China; [2] Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, United States

年份：2011

卷号：52

期号：23

起止页码：5271

外文期刊名：Polymer

收录：EI(收录号：20114414469601)

语种：英文

外文关键词：Surface treatment - Tensile strength - Polymer matrix composites - Yarn

摘要：This article reports the synthesis of poly(2,5-benzoxazole)/multiwalled carbon nanotubes (ABPBO/MWNT) composites by in situ polycondensation and their chemical and physical properties. The functional groups yielded from the surface modification of MWNTs by hydrochloric acids have been demonstrated to participate in the polymerization and thus led to the composites with homogenous dispersion of carbon nanotubes. The chemical structures and morphology of the afforded polymer composites have been fully characterized by FTIR, WAXD, UV-vis, TGA and SEM. The ABPBO/MWNT composites exhibit excellent thermal stability and greatly improved mechanical properties. The tensile modulus and tensile strength of the composites are 47% and 83%, respectively, higher than those of the polymer matrix. The dielectric constant of the composites is also significantly enhanced from 4 of the polymer matrix to 65 with the incorporation of 5 wt% MWNTs. ? 2011 Elsevier Ltd. All rights reserved.