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Licensed Unlicensed Requires Authentication Published by De Gruyter April 5, 2013

Reverse Phase HPLC Analysis of Commercial Surfactants used as Melt Additives

Analyse kommerzieller, als Schmelzadditive eingesetzte Tenside mittels Umkehrphasenhochleistungschromatographie (Reverse phase HPLC)
V. M. Datla , K. Beck , E. Shim and B. Pourdeyhimi

Abstract

Reverse phase HPLC (High Performance Liquid Chromatography) was used to analyze the length distribution of polyoxyethylene (POE) chains in commercial surfactants that can be used as melt additives for hydrophilic polypropylene surface modification. Ten nonionic surfactants including ethoxylated alcohols, nonyl phenols and amines, PEG esters, and mono glycerides were investigated. HPLC methods described herein are capable of analyzing ethoxylated nonionic surfactants and offer the advantage of separating the components in surfactants according to both the hydrophobe and hydrophile chain length. Moreover, the method is rapid and gradient elution allows for good baseline separation of the several components in the additives.

Kurzfassung

Zur Analyse der Kettenlängenverteilung von Polyoxyethylengruppen (PEO) in kommerziellen Tensiden, die als Schmelzadditive zur Modifikation der hydrophilen Polypropylenoberflächen eingesetzt werden, wurde die Umkehrphasenhochleistungschromatographie (RP-HPLC) verwendet. Zehn nichtionische Tenside, einschließlich ethoxilierter Alkohole, Nonylphenole und Amine, PEG-Ester und Monoglyceride, wurden untersucht. Die hier beschriebenen HPLC-Methoden sind für die Analyse ethoxylierter nichtionischer Tenside geeignet und bieten den Vorteil, dass eine Trennung der hydrophoben und hydrophilen Anteile der Tenside möglich ist. Darüber hinaus handelt es sich um eine schnelle Methode. Die Graduentenelution erlaubt aufgrund der guten Basislinie eine Auftrennung verschiedener Komponenten in den Additiven.


Eunkyoung Shim, College of Textiles, North Carolina State University, 2401 Research Drive, Raleigh, NC 27695. E-Mail:

Keith Beck, Ph. D., having earned a Ph.D. in organic chemistry, Beck has taught organic chemistry at Elmhurst College and Textile Chemistry at Purdue University and North Carolina State University. His current teaching responsibilities include the introductory freshman laboratory and the capstone analytical chemistry course for Polymer and Color Chemistry majors and a graduate course on instrumental analysis. At NCSU, his research has emphasized dyebath monitoring, textile applications of near-infrared spectroscopy, and the use of liquid and supercritical CO2 for textile cleaning, dyeing, and analysis. In 2006, he was awarded the American Association of Textile Chemists and Colorists' Olney Medal for Achievement in Textile Chemistry. Beck was Head of the Department of Textile Engineering, Chemistry and Science from 1998 – July 1, 2008. He has authored or co-authored more than 60 publications. More details can be found at http://www.tx.ncsu.edu.

Dr. Vasantha Datla, a Post-Doctoral Research Associate at NC State University since 2009, holds a B.Tech. (Textile Technology – India), M.Sc. (Textile Technology – NCSU), and Ph.D. (Fiber and Polymer Science – NCSU). Prior to being a Research Associate at NCSU, she worked at Pall Corporation's R & D department. Her present research interests include development of new filtration technologies for liquid and aerosol filtration applications. She is also the recipient of The George Goldfinger Award for Best Doctoral Dissertation in the Fiber and Polymer Science Program at College of Textiles, NCSU (May 2008).

Dr. Eunkyoung Shim is a research assistant professor at North Carolina State University. She received a Ph.D. in Fiber and Polymer Science from the North Carolina State University in 2001. She has extensive experience in the characterization of fiber and nonwoven morphology and structures. Her research interests are polymer modification with additives, optical and microscopy analysis of fibrous assembly, polymer surface modifications and fiber finishes. She is also interested in development of fiber based products.

Dr. B. Pourdeyhimi is The William A. Klopman Distinguished Chaired Professor of Materials in the College of Textiles at North Carolina State University. He holds a joint appointment in Textiles and Chemical Engineering. He is currently the Associate Dean for Industry Research and Extension and is also the Director of the Nonwovens Institute and the Nonwovens Cooperative Research Center (NCRC). Prior to joining NC State, he was a professor at the School of Textiles and Fiber Engineering at the Georgia Institute of Technology. Previously, he served for eleven years on the faculty in Textiles and Materials & Nuclear Engineering at the University of Maryland. He spent two years at Cornell as a research scientist studying medical textiles. He is the recipient of the 1994–1995 Distinguished Achievement Award by the Fiber Society. He has served as the President of the Fiber Society and has also been elected as the Fellow of the Textile Institute in United Kingdom. Dr. Pourdeyhimi's research interests are in the area of nonwovens, materials, biomaterials, failure mechanisms, special fiber-based structures, instrumentation, software algorithms, optics and image analysis. He has published over one hundred and fifty refereed publications and has presented over one hundred and fifty presentations in his areas of interest. His expertise is recognized by major corporations and leading research bodies around the world. He has acted as consultant to many bodies and major corporations.


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Received: 2009-09-22
Published Online: 2013-04-05
Published in Print: 2010-05-01

© 2010, Carl Hanser Publisher, Munich

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