Investigation of the kinetics of post-irradiation polymerization in solid acrylamide using differential scanning calorimetry

Ajji, Z.; Alkassiri, H.

doi:10.1016/s0969-806x(02)00472-3

Cited by 2 publications

(1 citation statement)

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“…The irradiation has a considerable function on formation of polymer structures. Polymerization reactions using irradiation do not require initiators or catalyst, thus the occurred polymer products do not contain impurities (9, 10). However, the irradiation can result in bond scission in the structures.…”

Section: Introductionmentioning

confidence: 99%

Analysis of polycrystal acrylamide by electron spin resonance and thermo‐analytical methods

Usta¹,

Filiz²,

Birey³

et al. 2011

Concepts Magnetic Resonance

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Electron spin resonance (ESR), thermogravimetry analysis (TGA), and differential thermal analysis (DTA) were performed on acrylamide (C 3 H 5 NO) polycrystal samples. The samples were irradiated at 298 K for 24, 48, 72, and 96 h using 60 Cogamma source. ESR measurements were carried out between 120 and 450 K. The ESR signals were recorded from the samples exposed to 60 Co -gamma rays for 72 and 96 h. Between 120 and 450 K the spectra changed in a manner roughly. It was detected by means of e.s.r. spectra that unpaired electron took place due to scission of pi bond in the carbon-carbon double bonds in the substance. The produced radiation damage center on the sample was attributed to ÁCH 2 -CH-R Additionally, thermal behavior of the acrylamide samples were investigated by using TGA and DTA methods. It was observed that both irradiated and not irradiated samples decomposed at three steps.

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Section: Introductionmentioning

confidence: 99%