Tailored Parallel Graphene Stripes in Plastic Film with Conductive Anisotropy by Shear-Induced Self-Assembly
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- 作者：Cui Mao ; Jinrui Huang ; Yutian Zhu ; Wei Jiang ; Qingxin Tang ; Xiaojing Ma
- 刊名：The Journal of Physical Chemistry Letters
- 出版年：2013
- 出版时间：January 3, 2013
- 年：2013
- 卷：4
- 期：1
- 页码：43-47
- 全文大小：348K
- 年卷期：v.4,no.1(January 3, 2013)
- ISSN：1948-7185
文摘
We present a simple but efficient route to prepare a highly anisotropic conductive plastic thin film from the polypropylene/(styrene-ethylene/butadiene-styrene) triblock copolymer/graphene blend via shear-induced self-assembly. Under the shear-flow induction, GE nanosheets dispersed in the polymer matrix can spontaneously assemble into ordered parallel stripes, which endow the materials significantly conductive anisotropy. The electrical resistivity in the direction parallel to the graphene stripes is almost four orders of magnitude lower than that which is perpendicular to the stripes. This study provides a new method for the precise control of the organization of functional nano-objects in polymer matrix, which can be widely extended to the fabrication of other multifunctional anisotropic materials of interest in various fields.