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Polymers 2012, 4(2), 889-912;

Current Advances in the Carbon Nanotube/Thermotropic Main-Chain Liquid Crystalline Polymer Nanocomposites and Their Blends

School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, 638075, Singapore
Energy Research Institute, Nanyang Technological University, 50 Nanyang Drive, 637553, Singapore
Author to whom correspondence should be addressed.
Received: 10 January 2012 / Revised: 12 March 2012 / Accepted: 14 March 2012 / Published: 23 March 2012
(This article belongs to the Special Issue Liquid Crystalline Polymers)
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Because of their extraordinary properties, such as high thermal stability, flame retardant, high chemical resistance and high mechanical strength, thermotropic liquid crystalline polymers (TLCPs) have recently gained more attention while being useful for many applications which require chemical inertness and high strength. Due to the recent advance in nanotechnology, TLCPs are usually compounded with nanoparticles to form particulate composites to enhance their properties, such as barrier properties, electrical properties, mechanical properties and thermal properties. Carbon-based nanofillers such as carbon nanotube (CNT), graphene and graphene oxide are the most common fillers used for the TLCP matrices. In this review, we focus on recent advances in thermotropic main-chain liquid crystalline polymer nanocomposites incorporated with CNTs. However, the biggest challenges in the preparation of CNT/TLCP nanocomposites have been shown to be inherent in the dispersion of CNTs into the TLCP matrix, the alignment and control of CNTs in the TLCP matrix and the load-transfer between the TLCP matrix and CNTs. As a result, this paper reviews recent advances in CNT/TLCP nanocomposites through enhanced dispersion of CNTs in TLCPs as well as their improved interfacial adhesion with the TLCP matrices. Case studies on the important role of chemically modified CNTs in the TLCP/thermoplastic polymer blends are also included. View Full-Text
Keywords: liquid crystalline polymer; carbon nanotube; nanocomposite; blend liquid crystalline polymer; carbon nanotube; nanocomposite; blend

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Cheng, H.K.F.; Basu, T.; Sahoo, N.G.; Li, L.; Chan, S.H. Current Advances in the Carbon Nanotube/Thermotropic Main-Chain Liquid Crystalline Polymer Nanocomposites and Their Blends. Polymers 2012, 4, 889-912.

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