Evaluation of polybutadiene rubbers using FTIR spectra

Lucas N Oliveira; Fernando Schimidt; Silvio Leão Vieira; Patricia de Lara Antonio; Linda Viola Ehlin Caldas

doi:10.15392/bjrs.v5i2.198

Authors

Lucas N Oliveira
Fernando Schimidt
Silvio Leão Vieira
Patricia de Lara Antonio
Linda Viola Ehlin Caldas

DOI:

https://doi.org/10.15392/bjrs.v5i2.198

Keywords:

radiation, dosimetry, detectors

Abstract

Radiation dosimetry for medical and industrial purposes has increasingly evolved over the last few decades with the introduction of various new detectors. Depending on the properties exhibited for radiation dosimetry, some detectors present their applications in a specific area. From a physics point of view, an ideal dosimeter should be able to measure absorbed dose. In this work, synthetic materials based on polybutadiene rubbers (PBR) were proposed as a new class of radiation detectors. The influence of radiation dose on their properties has been investigated for application in radiation dosimetry. The rubber samples were exposed to absorbed doses from 10 Gy up to 250 Gy, using a ⁶⁰Co Gamma Cell-220 system. Their responses were carried out with a Fourier Transform Infrared (FTIR) Spectrometer to investigate the presence of absorbance peaks. The results suggested the existence of a relationship between the absorbed doses and the absorbance peaks associated with stretching (1300-1200 cm^-1), deformation (1450-1340 cm^-1) and vibration (1500-1400 cm^-1) processes in the material.

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