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New Ethanol Study Findings Recently Were Reported by Researchers at National Taiwan University of Science and Technology (A study on the...

August 20, 2014



New Ethanol Study Findings Recently Were Reported by Researchers at National Taiwan University of Science and Technology (A study on the characteristics and pervaporation performance of polyamide thin-film composite membranes with modified ...)

By a News Reporter-Staff News Editor at Biotech Week -- Current study results on Ethanol have been published. According to news originating from Taipei, Taiwan, by NewsRx correspondents, research stated, "To improve the pervaporation performance in separating an aqueous ethanol solution, polyamide thin-film composite (TFC) membranes (m-tolidine-H-TMC/mPAN) were prepared through the interfacial polymerization reaction between trimesoyl chloride (TMC) and 2,2'-dimethylbenzidine hydrochloride (m-tolidine-H) on the surface of a modified polyacrylonitrile (mPAN) membrane. The effects of the feed ethanol concentration on the pervaporation performance and the durability of m-tolidine-H-TMC/mPAN TFC membranes were investigated."

Our news journalists obtained a quote from the research from the National Taiwan University of Science and Technology, "To choose the optimal mPAN membrane as the TFC substrate, the effect of hydrolysis time on the chemical properties and separation performance of an mPAN substrate was also studied. An appropriate hydrolysis time of 15 min was chosen to obtain the mPAN substrate due to the corresponding high permeation flux. The m-tolidine-H-TMC/mPAN TFC membrane exhibited a high pervaporation performance for ethanol dehydration."

According to the news editors, the research concluded: "A positron annihilation lifetime spectroscopy experiment was used to estimate the mean free-volume radius of the m-tolidine-H-TMC polyamide selective layer, which lay between the radii of the water and ethanol molecules."

For more information on this research see: A study on the characteristics and pervaporation performance of polyamide thin-film composite membranes with modified polyacrylonitrile as substrate for bioethanol dehydration. Polymer International, 2014;63(8):1478-1486. Polymer International can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell - www.wiley.com/; Polymer International - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1097-0126)

The news correspondents report that additional information may be obtained from Y.H. Huang, Natl Taiwan Univ Sci & Technol, Dept. of Chem Engn, Taipei 10607, Taiwan. Additional authors for this research include S.H. Huang, W.C. Chao, C.L. Li, Y.Y. Hsieh, W.S. Hung, D.J. Liaw, C.C. Hu, K.R. Lee and J.Y. Lai (see also Ethanol).

Keywords for this news article include: Asia, Biotechnology, Taipei, Taiwan, Energy, Alcohols, Bio Ethanol, Oil and Gas, Ethanolamines, Bioengineering

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Biotech Week


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