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Open AccessArticle

Liquid Crystalline Network Composites Reinforced by Silica Nanoparticles

Department of Chemistry, Tsinghua University, Beijing 100084, China
Authors to whom correspondence should be addressed.
Materials 2014, 7(7), 5356-5365;
Received: 11 March 2014 / Revised: 4 June 2014 / Accepted: 6 June 2014 / Published: 22 July 2014
(This article belongs to the Special Issue Liquid Crystals)
Liquid crystalline networks (LCNs) are a class of polymers, which are able to produce mechanical actuation in response to external stimuli. Recent creation of LCNs with exchangeable links (xLCNs) makes LCNs easy moldable. As the xLCNs need to be shaped at a high temperature, it is important to enhance their thermal and mechanical properties. In this paper, a series of xLCNs/SiO2 composites containing 1%–7% SiO2 nanoparitcles (SNP) were prepared and their thermal and mechanical properties were examined. The results show that xLCNs/SNP composites have lower liquid crystalline-isotropic phase transition temperature and higher decomposition temperature than pure LCN. The tensile strength and the elongation at break of xLCNs at high temperatures were also enhanced due to the addition of SNPs. View Full-Text
Keywords: liquid crystalline network; composite; silica nanoparticle liquid crystalline network; composite; silica nanoparticle
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Li, Z.; Yang, Y.; Qin, B.; Zhang, X.; Tao, L.; Wei, Y.; Ji, Y. Liquid Crystalline Network Composites Reinforced by Silica Nanoparticles. Materials 2014, 7, 5356-5365.

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