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Journal of Radioanalytical and Nuclear Chemistry

, Volume 298, Issue 2, pp 1041–1047

First Online: 21 August 2013Received: 26 January 2013

Abstract

Post-irradiation grafting of sodium styrene sulfonate SSS in the presence of acrylic acid AA has been investigated on polyethylene PE pre-exposed to gamma radiation at room temperature in the air. Special attention was paid to the effect of low molecular weight salt additives on the kinetics of graft copolymerization of SSS and AA. The presence of SSS links in the grafted PE copolymers was detected by the methods of UV and FTIR spectroscopy. Based on the FITR spectroscopy and element analysis data, a mechanism was proposed for graft copolymerization of SSS and AA onto PE. The mechanical properties of the graft copolymers were studied. It was established that PE copolymers grafted with sulfonic acid and carboxyl groups have higher strength characteristics 16.3 MPa compared to the samples containing only carboxyl groups 11 MPa.

KeywordsGamma radiation Graft polymerization Sodium styrene sulfonate Acrylic acid Polyethylene AbbreviationsAAAcrylic acid

gGrafting degree

HDPEHigh density polyethylene

PAAPolyacrylic acid

PEPolyethylene

PE-g-PAAPolyethylene with grafted polyacrylic acid

PE-g-PAA-co-PSSPolyethylene with grafted copolymer of acrylic acid and styrene sulfonic acid

PSSSodium polystyrene sulfonate, polystyrene sulfonic acid

SSSSodium styrene sulfonate

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Autor: Natalia K. Kitaeva - Vladimir R. Duflot - Natalia S. Ilicheva

Fuente: https://link.springer.com/







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