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Gebel, M.E., Kaleuati, M. A., Finlayson-Pitts, B. J.. ¡°Measurement of the Organics using Three FTIR Techniques: Absorption, Attenuated Total Reflectance, and Diffuse Reflectance¡±, J. Chem. Ed., 80 (6), 672-675, June 2003.

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Article

Quantitative Analysis of Polyvinyl Alcohol-Polyethylene (PVOH-PE) Copolymers and Polyvinyl Pyrrolidone-Polyvinyl Acetate (PVP-PVAc) Copolymers and Blends Using Fourier Transform Infrared Spectroscopy and Elemental Analysis

1Chemistry Department, Hofstra University, Hempstead, NY


World Journal of Chemical Education. 2019, Vol. 7 No. 1, 1-11
DOI: 10.12691/wjce-7-1-1
Copyright © 2019 Science and Education Publishing

Cite this paper:
Ronald P. D¡¯Amelia, Ling Huang, Joseph Mancuso. Quantitative Analysis of Polyvinyl Alcohol-Polyethylene (PVOH-PE) Copolymers and Polyvinyl Pyrrolidone-Polyvinyl Acetate (PVP-PVAc) Copolymers and Blends Using Fourier Transform Infrared Spectroscopy and Elemental Analysis. World Journal of Chemical Education. 2019; 7(1):1-11. doi: 10.12691/wjce-7-1-1.

Correspondence to: Ronald  P. D¡¯Amelia, Chemistry Department, Hofstra University, Hempstead, NY. Email: ronald.p.damelia@hofstra.edu

Abstract

Fourier transform infrared spectroscopy (FTIR) is a widespread instrumental technique used to determine the molecular structure of organic polymers. With the goal of increasing instrumental use in the undergraduate chemistry laboratory, we have devised a quantitative FTIR experiment to be used in instrumental analysis courses. The objective was to determine the % PVOH in copolymers with PE as well as to determine the % PVAc in copolymers and blends with PVP. We report on the methodology used to determine % PVOH and %PVP, as well as the results obtained via FTIR and elemental analysis. The literature regarding PVOH-PE copolymers refers to them as either EVOH copolymers or PVOH-PE copolymers, though EVOH is more common and thus these copolymers will be referred to as EVOH. The EVOH copolymers ranged from 73 to 56 mole% PVOH and the copolymers and blends of PVP-PVAc ranged from 70 to 30 mole% PVP.

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