ATR spectroscopy applied to photochromic polymer analysis

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Abstract

This work reports the use of infrared spectroscopy in the Attenuated Total Reflection (ATR) mode to analyze the interactions between polymeric bases and the spiropyran. Infrared spectroscopy helps to understand the interactions between the different molecules, spiropyran polymeric base and the solvent. Polymethyl methacrylate and cellulose acetate as polymeric base and the spiropyran 1, 3, 3 trimethyl indoline-5-nitro benzopyrane were used. Thin films of different concentrations (0.25%, 0.5%, 1%, 2% and 5%) of spiropyran were deposited in each type of polymeric base. The infrared spectra show the frequencies associated with the chemical bonds of each molecule. A decrease in intensity of absorbance was observed for the C = O stretching mode of the acetate group located at 1720 cm- 1 and for the C = C and C = N stretching modes at 1642 cm- 1 associated with spiropyran. A shift in the intensity of the peaks was also observed due to solvent and polymeric base effects on the final film. © 2006 Elsevier Inc. All rights reserved.
Original languageAmerican English
Pages (from-to)771-775
Number of pages693
JournalMaterials Characterization
DOIs
StatePublished - 1 Aug 2007

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Stretching
Infrared spectroscopy
Polymers
Spectroscopy
Molecules
acetates
Chemical bonds
polymers
Polymethyl methacrylates
infrared spectroscopy
spectroscopy
Cellulose
chemical bonds
Infrared radiation
cellulose
polymethyl methacrylate
Thin films
molecules
infrared spectra
interactions

Cite this

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title = "ATR spectroscopy applied to photochromic polymer analysis",
abstract = "This work reports the use of infrared spectroscopy in the Attenuated Total Reflection (ATR) mode to analyze the interactions between polymeric bases and the spiropyran. Infrared spectroscopy helps to understand the interactions between the different molecules, spiropyran polymeric base and the solvent. Polymethyl methacrylate and cellulose acetate as polymeric base and the spiropyran 1, 3, 3 trimethyl indoline-5-nitro benzopyrane were used. Thin films of different concentrations (0.25{\%}, 0.5{\%}, 1{\%}, 2{\%} and 5{\%}) of spiropyran were deposited in each type of polymeric base. The infrared spectra show the frequencies associated with the chemical bonds of each molecule. A decrease in intensity of absorbance was observed for the C = O stretching mode of the acetate group located at 1720 cm- 1 and for the C = C and C = N stretching modes at 1642 cm- 1 associated with spiropyran. A shift in the intensity of the peaks was also observed due to solvent and polymeric base effects on the final film. {\circledC} 2006 Elsevier Inc. All rights reserved.",
author = "R. Delgado-Macuil and M. Rojas-L{\'o}pez and Gayou, {V. L.} and A. Ordu{\~n}a-D{\'i}az and J. D{\'i}az-Reyes",
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T1 - ATR spectroscopy applied to photochromic polymer analysis

AU - Delgado-Macuil, R.

AU - Rojas-López, M.

AU - Gayou, V. L.

AU - Orduña-Díaz, A.

AU - Díaz-Reyes, J.

PY - 2007/8/1

Y1 - 2007/8/1

N2 - This work reports the use of infrared spectroscopy in the Attenuated Total Reflection (ATR) mode to analyze the interactions between polymeric bases and the spiropyran. Infrared spectroscopy helps to understand the interactions between the different molecules, spiropyran polymeric base and the solvent. Polymethyl methacrylate and cellulose acetate as polymeric base and the spiropyran 1, 3, 3 trimethyl indoline-5-nitro benzopyrane were used. Thin films of different concentrations (0.25%, 0.5%, 1%, 2% and 5%) of spiropyran were deposited in each type of polymeric base. The infrared spectra show the frequencies associated with the chemical bonds of each molecule. A decrease in intensity of absorbance was observed for the C = O stretching mode of the acetate group located at 1720 cm- 1 and for the C = C and C = N stretching modes at 1642 cm- 1 associated with spiropyran. A shift in the intensity of the peaks was also observed due to solvent and polymeric base effects on the final film. © 2006 Elsevier Inc. All rights reserved.

AB - This work reports the use of infrared spectroscopy in the Attenuated Total Reflection (ATR) mode to analyze the interactions between polymeric bases and the spiropyran. Infrared spectroscopy helps to understand the interactions between the different molecules, spiropyran polymeric base and the solvent. Polymethyl methacrylate and cellulose acetate as polymeric base and the spiropyran 1, 3, 3 trimethyl indoline-5-nitro benzopyrane were used. Thin films of different concentrations (0.25%, 0.5%, 1%, 2% and 5%) of spiropyran were deposited in each type of polymeric base. The infrared spectra show the frequencies associated with the chemical bonds of each molecule. A decrease in intensity of absorbance was observed for the C = O stretching mode of the acetate group located at 1720 cm- 1 and for the C = C and C = N stretching modes at 1642 cm- 1 associated with spiropyran. A shift in the intensity of the peaks was also observed due to solvent and polymeric base effects on the final film. © 2006 Elsevier Inc. All rights reserved.

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U2 - 10.1016/j.matchar.2006.12.003

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