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Polymers 2016, 8(7), 251;

A Facile Route to Synthesize Nanographene Reinforced PBO Composites Fiber via in Situ Polymerization

MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
Interdisciplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus C, Denmark
These authors contributed equally to this work.
Authors to whom correspondence should be addressed.
Academic Editor: Hsing-Lin Wang
Received: 24 May 2016 / Revised: 21 June 2016 / Accepted: 28 June 2016 / Published: 4 July 2016
(This article belongs to the Special Issue Conjugated Polymers 2016)
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The polymer matrix with introduced carbon-based nanofiber displays fascinating properties. They have inspired extensive research on the synthesis of polymer composites, which have been applied in catalysis, electronics, and energy storage. In this report, we reported a facile and efficient method to prepare poly(p-phenylene benzobisoxazole) (PBO)/nanographene (PNG) composites fibers via in-situ polymerization, accompanied by the reduction from (nanographene oxide) NGO to (nanographene) NG. By tuning the ratio of feeding PBO monomer to NGO, various composites fibers with 0.1–1 wt % contents of NG were obtained. The efficient PBO chains grafting made NG uniformly disperse in the PBO matrix, and it also increased the uniformity of the packing orientation of PBO chains. Consequently, the tensile strength, tensile modulus, and thermal stability of the obtained PNG composites fibers had been improved significantly. In addition, the composites fibers with 0.5 wt % NG exhibited a 25% increment in tensile strength, and a 41% enhancement in tensile modulus compared with neat PBO fibers. It reveals an excellent reinforcement to PBO composites fibers with NG. View Full-Text
Keywords: nanographene; poly(p-phenylene benzobisoxazole) fiber (PBO fiber); polymer composites; conjugated polymer nanographene; poly(p-phenylene benzobisoxazole) fiber (PBO fiber); polymer composites; conjugated polymer

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Wang, M.; Zhang, S.; Dong, J.; Song, Y.; Mao, J.; Xie, H.; Qian, Y.; Huang, Y.; Jiang, Z. A Facile Route to Synthesize Nanographene Reinforced PBO Composites Fiber via in Situ Polymerization. Polymers 2016, 8, 251.

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