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Using Terahertz Spectroscopy for Observing the Kinetics of Recrystallisation of Polybutene-1

Abstract

This paper deals with the use of terahertz spectroscopy for observing the kinetics of recrystallisation of polybutene-1 as a suitable material for manufacturing optical elements in the terahertz region of the electromagnetic spectrum. These materials were studied from the perspective of their optical properties – the refractive index and the absorption coefficient. The time dependencies of the refractive index and the absorption coefficient were measured, because polybutene-1 is a material which recrystallises for a number of days from the date of its manufacture. The coefficients describing the recrystallisation process were calculated from the fitting function derived from the Avrami equation. In this paper, the measurement results are presented and the possibilities of the use of the studied materials are discussed.

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Acknowledgments

This research was supported by the European Regional Development Fund under the project CEBIA-Tech No. CZ.1.05/2.1.00/03.0089 and the Internal Grant Agency of Tomas Bata University in Zlin, under the project No. IGA/FAI/2012002.

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Correspondence to T. Gavenda.

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Křesálek, V., Gavenda, T. Using Terahertz Spectroscopy for Observing the Kinetics of Recrystallisation of Polybutene-1. J Infrared Milli Terahz Waves 34, 187–193 (2013). https://doi.org/10.1007/s10762-013-9956-8

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Keywords

  • Terahertz spectroscopy
  • Polybutene-1
  • Refractive index
  • Absorption coefficient
  • Recrystallisation