Probing the Polymer/Solid Interface and Interphase in Mesostructured 2D-Carbon Nanotube/Polymer Composites: A Combined Study of Experiment and Theory.

探测介观结构二维碳纳米管/聚合物复合材料中的聚合物/固体界面和界面：实验与理论的结合研究。

• 批准号: 67417401
• 负责人: Professorin Dr. Barbara Drossel
• 金额: --
• 依托单位: Institut für Physik Kondensierter Materie (IPKM)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/67417401?language=en
• 关键词: Probing; Polymer; Solid; Interface; Interphase

In our project, we are furthermore aiming at a concerted experimental and theoretical approach between our three groups to understand the interaction of polymers with carbon nanotubes (CNTs). We are using highly ordered two-dimensional CNT architectures as solids, and single-phase polymers. The interaction of this material with single polymers, such as deuterated polystyrene and PMMA (ongoing work and to be finished work in the first project period), as well as with poly(para-xylylene), PPX, (new work in the following project period) will be studied by experimental and theoretical means in order to gain a deeper understanding of the crucial factors determining the interface and interphase formation in such CNT/polymer hybrids. For the synthesis and alignment of the CNTs, our established, template-based approach will be widened by an additional, catalytically driven CVD technique, which allows to obtain arranged and ordered, freestanding CNT arrays without the use of a template. This process will result in highly arranged CNTs with narrower tube diameters and intersticial void space between individual CNTs, and in addition to an even higher vertical alignment of individual CNTs over larger spatial areas, as compared to the currently used approach. As new polymer system we will introduce the technogically important single-phase polymer poly-para(xylylene) (PPX). With respect to an understanding of its microscopic interface properties with surfaces on the nm or lower sub mm size regime, this polymer has not been studied at all, despite its enormous technological importance. In continuation of our ongoing project work with the coiled polymers polystyrene and PMMA, and by expanding it into the technologically important, and compared to the currently studied polystyrene and PMMA polymers stiffer PPX polymer. The [CNT // CNT] interface and the [CNT // PPX // CNT] interphase will be studied by experimental scattering techniques as well as theoretical methods developed by our groups in the first project period. Our central overall scientific project goals remain valid for the new project period and are to unravel and understand important factors which govern polymer chain conformation at the interface [CNT // polymer] as well as in the interphase between [CNT // polymer // CNT] in which a polymer is embedded between individual CNTs within an ordered CNT array. Small and wide angle X-ray scattering will be used to study the structure of the interphase formed. Wide angle scattering will in particular provide information on the crystallinity of the deposited polymer. In order to reflect the new experimental situation, the theoretical investigation shall be extended to the new CNT array structures with the stiffer PPX polymers which will allow orientationdependent interactions with the CNTs.

在我们的项目中，我们的目标是在我们的三个小组之间建立一种协调的实验和理论方法，以了解聚合物与碳纳米管(CNTs)的相互作用。我们正在使用高度有序的二维碳纳米管结构作为固体和单相聚合物。我们将通过实验和理论的方法来研究这种材料与单一聚合物的相互作用，如氢化聚苯乙烯和PMMA(正在进行的工作和第一个项目期将完成的工作)，以及与聚对二甲苯、PPX(下一个项目期的新工作)的相互作用，以便更深入地了解决定这种碳纳米管/聚合物杂化材料界面和界面形成的关键因素。对于碳纳米管的合成和比对，我们已建立的基于模板的方法将被另一种催化驱动的CVD技术所扩展，该技术允许在不使用模板的情况下获得排列有序的独立的碳纳米管阵列。与目前使用的方法相比，这一过程将导致高度排列的碳纳米管具有更窄的管径和单个碳纳米管之间的间隙空隙，并且与目前使用的方法相比，单个碳纳米管在更大的空间区域上的垂直排列甚至更高。作为新的聚合物体系，我们将介绍具有重要技术意义的单相聚合物聚对二甲苯(PPX)。关于了解其与纳米或更低亚毫米尺寸的表面的微观界面性质，这种聚合物根本没有被研究过，尽管它具有巨大的技术重要性。在继续我们正在进行的盘绕聚合物聚苯乙烯和聚甲基丙烯酸甲酯的项目工作中，通过将其扩展到具有重要技术意义的聚苯乙烯和聚甲基丙烯酸甲酯聚合物，并与目前研究的聚苯乙烯和聚甲基丙烯酸甲酯聚合物相比，更坚硬的PPX聚合物。[CNT//CNT]界面和[CNT//PPX//CNT]界面将通过实验散射技术以及我们团队在第一个项目阶段开发的理论方法进行研究。我们的中心总体科学项目目标在新的项目期内仍然有效，旨在揭示和了解控制[CNT//聚合物]界面以及[CNT//聚合物//CNT]界面聚合物链构象的重要因素，其中聚合物嵌入有序碳纳米管阵列中的各个碳纳米管之间。用小角度和广角X射线散射研究形成的界面相结构。广角散射将特别提供有关沉积聚合物结晶度的信息。为了反映新的实验情况，理论研究应扩展到具有更坚硬的PPX聚合物的新的碳纳米管阵列结构，这将允许与碳纳米管的取向相关的相互作用。

项目成果

Polymer confinement effects in aligned carbon nanotubes arrays.

• DOI: 10.1039/b922906j
• 发表时间: 2010-04
• 期刊: Physical chemistry chemical physics : PCCP
• 作者: P. Mahanandia;J. J. Schneider-J.;M. Khaneft;B. Stühn;Tiago P. Peixoto;B. Drossel

Density profile and polymer configurations for a polymer melt in a regular array of nanotubes

规则纳米管阵列中聚合物熔体的密度分布和聚合物构型

• DOI: 10.1088/1367-2630/13/7/073030
• 发表时间: 2011
• 期刊: New Journal of Physics
• 影响因子: 3.3
• 作者: Tiago Peixoto;Barbara Drossel
• 通讯作者: Barbara Drossel