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Researchers from California Institute of Technology Detail Findings in Applied Polymer Science

February 4, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- Fresh data on Applied Polymer Science are presented in a new report. According to news reporting originating in Pasadena, California, by VerticalNews journalists, research stated, "Commercial polysulfone (PSf) membranes were crosslinked with a -cyclodextrin-poly (propyleneimine) (-CD-PPI) conjugate which had -CD pendant arms using trimesoyl chloride (TMC) by interfacial polymerization. The morphology and physicochemical properties of the nanofiltration membranes were characterized using Fourier transform infrared/attenuated total reflectance (FT-IR/ATR) spectroscopy, scanning electron microscopy (SEM), atomic force microscopy (AFM), and cross-flow filtration system."

The news reporters obtained a quote from the research from the California Institute of Technology, "Water-contact angle, water-intake capacity, and rejection capacities of the membranes were evaluated. The -CD-G4 (generation 4)-PPI-PSf and -CD-G3 (generation 3)-PPI-PSf membranes both exhibited high humic acid rejection of 72% as compared to the commercial PSf which exhibited 57%. The modified membranes were also more hydrophilic (36 degrees to 41 degrees) than PSf (76 degrees)."

According to the news reporters, the research concluded: "These results suggest that -CD-PPI nanostructures are promising materials for the synthesis of membranes for the removal of humic acid from water."

For more information on this research see: Cyclodextrin-Dendrimer Functionalized Polysulfone Membrane for the Removal of Humic Acid in Water. Journal of Applied Polymer Science, 2013;130(6):4428-4439. Journal of Applied Polymer Science can be contacted at: Wiley-Blackwell, 111 River St, Hoboken 07030-5774, NJ, USA. (Wiley-Blackwell -; Journal of Applied Polymer Science -

Our news correspondents report that additional information may be obtained by contacting S.P. Malinga, California Institute of Technology, Div Engn & Appl Sci Environm Sci & Engn, Pasadena, CA 91125, United States. Additional authors for this research include O.A. Arotiba, R.W.M. Krause, S.F. Mapolie, M.S. Diallo and B.B. Mamba.

Keywords for this news article include: Pasadena, California, United States, Applied Polymer Science, North and Central America

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Source: Journal of Technology

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