Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers, University of Mons, Place du Parc 20, 7000 Mons, Belgium.
Biomacromolecules. 2011 Nov 14;12(11):4086-94. doi: 10.1021/bm201149g. Epub 2011 Oct 4.
This work relies on the CNT dispersion in either solution or a polymer matrix through the formation of a three-component supramolecular system composed of PEO-b-PLLA diblock copolymer, carbon nanotubes (CNTs), and lithium chloride. According to a one-pot procedure in solution, the "self-assembly" concept has demonstrated its efficiency using suspension tests of CNTs. Characterizations of the supramolecular system by photon correlation spectroscopy, Raman spectroscopy, and molecular dynamics simulations highlight the charge transfer interaction from the CNTs toward the PEO-b-PLLA/LiCl complex. Finally, this concept was successfully extended in bulk (absence of solvent) via melt-processing techniques by dispersing these complexes in a commercial polylactide (PLA) matrix. Electrical conductivity measurements and transmission electron microscopy attested for the remarkable dispersion of CNTs, confirming the design of high-performance PLA-based materials.
这项工作依赖于 CNT 在溶液或聚合物基质中的分散，通过形成由聚（氧化乙烯）-b-聚（丙交酯）嵌段共聚物、碳纳米管（CNT）和氯化锂组成的三组分超分子体系。根据溶液中的一锅法程序，“自组装”概念通过 CNT 的悬浮测试证明了其效率。通过光子相关光谱、拉曼光谱和分子动力学模拟对超分子体系的表征突出了 CNT 向 PEO-b-PLLA/LiCl 复合物的电荷转移相互作用。最后，该概念通过熔体加工技术在本体（无溶剂）中成功扩展，即将这些复合物分散在商业聚乳酸（PLA）基质中。电导率测量和透射电子显微镜证明了 CNT 的显著分散，证实了高性能 PLA 基材料的设计。
