Investigation on radiation degradation of carboxymethylcellulose by ionizing irradiation.
This study was done to compare the effects of irradiations with gamma-rays and electron beams, on the viscosity of the carboxymethylcellulose (CMC), on the functional groups of CMC, and on the production of radicals. It was observed that the relative viscosities decreased as the irradiation doses increased, but the decrease was more significant when irradiation with gamma rays. FT-IR spectra showed no significant difference between the gamma-ray and the electron beam irradiated samples. ESR spectra showed that the gamma-ray irradiation produced more radicals than electron beam irradiation in CMC.
Lee
Hee-Sub
HS
Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 580-185, Republic of Korea.
Choi
Jong-Il
JI
Kim
Jae-Hun
JH
Lee
Kwang-Won
KW
Chung
Young-Jin
YJ
Shin
Mee-Hye
MH
Byun
Myung-Woo
MW
Shin
Myung-Gon
MG
Lee
Ju-Woon
JW
D002266:Carboxymethylcellulose Sodium / Q000528:radiation effects*; D004307:Dose-Response Relationship, Radiation; D004583:Electrons; D005609:Free Radicals; D005720:Gamma Rays; D011839:Radiation, Ionizing; D014783:Viscosity / Q000528:radiation effects
D005609:Free Radicals; D002266:Carboxymethylcellulose Sodium