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P-29 Simultaneous Hydroxyl Number Determination and Moisture Analysis of Dendritic Polymers using NIR Spectroscopy

By Ryan Hayes, HwukChan Woo and Seth Stacey

Abstract

NIR spectroscopy is a valuable tool for many industries, especially those that need rapid moisture analysis. NIR absorption spectroscopy has not been applied to highly branched (or dendritic) polymers such as hyperbranched polymers and dendrimers. Our research investigates the advantages and disadvantages of using NIR absorption spectroscopy to quantitate the hydroxyl functional group density, called Hydroxyl Number, simultaneously with the analysis of water content in a dendritic polymer sample. Hydroxyl-surface dendrimers are expensive which presents a sample size problem, and they are highly soluble in protic solvents which interferes with analysis. This research will demonstrate a methodology to overcome these challenges which allows the simplicity, ease, and quantitative power of NIR spectroscopy to be applied to dendritic polymer analysis

Topics: Polymer Chemistry
Publisher: Digital Commons @ Andrews University
Year: 2014
OAI identifier: oai:digitalcommons.andrews.edu:cor-1029
Provided by: Andrews University
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