By a News Reporter-Staff News Editor at Science Letter -- Current study results on Hydrogen have been published. According to news originating from Hangzhou, People's Republic of China, by NewsRx correspondents, research stated, "Despite the high strength and stiffness of polymer nanocomposites, they usually display lower deformability and toughness relative to their matrices. Spider silk features exceptionally high stiffness and toughness via the hierarchical architecture based on hydrogen-bond (H-bond) assembly."
Our news journalists obtained a quote from the research from Zhejiang Agriculture & Forestry University, "Inspired by this intriguing phenomenon, we here exploit melamine (MA) to reinforce poly(vinyl alcohol) (PVA) via H-bond self-assembly at a molecular level. Our results have shown that due to the formation of physical crosslink network based on H-bond assembly between MA and PVA, yield strength, Young's modulus, extensibility, and toughness of PVA are improved by 22, 25, 144, and 200% with 1.0 wt % MA, respectively. Moreover, presence of MA can enhance the thermal stability of PVA to a great extent, even exceeding some nanofillers (e.g., graphene)."
According to the news editors, the research concluded: "This work provides a facile method to improve the mechanical properties of polymers via H-bond self-assembly."
For more information on this research see: Bioinspired Strategy to Reinforce PVA with Improved Toughness and Thermal Properties via Hydrogen-Bond Self-Assembly. ACS Macro Letters, 2013;2(12):1100-1104. ACS Macro Letters can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; ACS Macro Letters - www.pubs.acs.org/journal/amlccd)
The news correspondents report that additional information may be obtained from P.A. Song, Zhejiang Agr & Forestry Univ, Coll Engn, Dept. of Mat, Hangzhou 311300, Zhejiang, People's Republic of China. Additional authors for this research include Z.G. Xu and Q.P. Guo (see also Hydrogen).
Keywords for this news article include: Asia, Gases, Hangzhou, Elements, Hydrogen, Inorganic Chemicals, People's Republic of China
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