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Polymeric Systems Under External Thermal Stress Studied by FTIR Technique

[ Vol. 6 , Issue. 1 ]

Author(s):

M.T. Caccamo, E. Calabro, S. Coppolino and S. Magazu*   Pages 46 - 48 ( 3 )

Abstract:


Background: Temperature behavior of a class of PolyEthylene Oxide and Ethylene Glycol (EG) by means of InfraRed spectroscopy as a function of temperature and concentration.

Methods: EG and PEO with Mw of 1000 were purchased from Aldrich-Chemie; To collect the FTIR spectra in the 39°C-80°C temperature range by means of a FTIR Vertex 70V spectrometer by Bruker Optics. Spectra were obtained using an average of 36 scans with a resolution of 4 cm-1 in a window range of 400 ÷ 4000 cm-1. Each measure was performed under vacuum in order to minimize spectral contributions due to residual water vapor and finally the data were processed through the OPUS/Mentor software interface, Mathematica and Matlab.

Results: The addition of EG to PEO increases the thermal restraint of the polymeric matrix due an increase of the H-bond connectivity.

Conclusion: The analysis highlights an increased H-bonded connectivity in the polymeric mixture, which determines a higher resistance to temperature changes of the mixture.

Keywords:

Ethylene glycol, PolyEthylene oxide, FTIR spectroscopy, hypsochromic frequency shift, polymeric mixture, H-bonded.

Affiliation:

Department of Mathematical and Informatics Sciences, Physical Sciences and Earth Sciences of Messina University, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Department of Mathematical and Informatics Sciences, Physical Sciences and Earth Sciences of Messina University, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Department of Mathematical and Informatics Sciences, Physical Sciences and Earth Sciences of Messina University, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Department of Mathematical and Informatics Sciences, Physical Sciences and Earth Sciences of Messina University, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina

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