Studies of the effects of molecular weight on the gamma irradiation degradation of poly [Methylmetacrylate] doped with p-N, N-dioxaloylaminobenze -N',N'-dioxaloylsulphonyloxamide and its cobalt [II] complex
Egyptian Journal of Chemistry. 2005; 48 (1): 101-120
en Inglés
| IMEMR
| ID: emr-70436
ABSTRACT
Protection of some poly [methylmethacrylate] samples against gamma rays had been investigated in the absence and presence of p N,N-dioxaloylamjnobenzene-N', N' dioxaloylbenzenesul-phony-loxamide and its cobalt [II] complex. The pure PMMA [without additives], PMMA-ligand and PMMA-cobalt [II] complex composite samples were irradiated with gamma rays for different exposure doses [5, 15, 25, 35, 50, 75 and 100 kGy]. Viscosity average molecular weight [Mv-values] and thin layer chromatographic measurements were carded out after each irradiation dose. The maximum protection against gamma ray was found when 1% of the organic ligand or its cobalt [II] complex is used in the polymer matrix
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Índice:
IMEMR (Mediterraneo Oriental)
Asunto principal:
Ácido Oxámico
/
Azufre
/
Cromatografía en Capa Delgada
/
Cobalto
/
Sustancias Protectoras
/
Rayos gamma
/
Peso Molecular
Idioma:
Inglés
Revista:
Egypt. J. Chem.
Año:
2005
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