Enhanced mechanical and thermal properties of poly(l-lactide) nanocomposites assisted by polydopamine-coated multiwalled carbon nanotubes
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- 作者：Hongfang Wang (1)
Cong Wu (1)
Xu Liu (1)
Jing Sun (2)
Guangmei Xia (3)
Wei Huang (4)
Rui Song (1) - 关键词：Poly(l ; lactic acid) ; Polydopamine ; MWNT nanocomposites ; Mechanical and thermal properties
- 刊名：Colloid & Polymer Science
- 出版年：2014
- 出版时间：November 2014
- 年：2014
- 卷：292
- 期：11
- 页码：2949-2957
- 全文大小：1,499 KB
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Cong Wu (1)
Xu Liu (1)
Jing Sun (2)
Guangmei Xia (3)
Wei Huang (4)
Rui Song (1)
1. College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
2. Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
3. CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Beijing, 100190, China
4. Laboratory of Advanced Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China - ISSN：1435-1536
文摘
Herein, a facile and noncovalent modification for multiwalled carbon nanotubes (MWNTs) is adopted by the self-polymerization of dopamine (DOPA). And, the polydopamine-coated MWNTs (D-MWNTs) were further incorporated into poly(l-lactide) (PLLA) matrix through the solvent-casting method. It is found that the D-MWNTs tend to be well dispersed in PLLA matrix than the pristine MWNTs and the D-MWNTs that can act as heterogeneous nucleators that evidently affect the morphology and crystallization behavior of PLLA. In addition, the significant improvement of dispersion and the interface interaction of PLLA/D-MWNTs, via dopamine coating between the MWNTs and PLLA matrix, results in enhanced mechanical and thermal properties and electrical conductivity. This facile methodology is believed to afford broad application potential in carbon nanotubes (CNTs)-based polymer nanocomposites.