title: Radiation graft post-polymerization of sodium styrene sulfonate onto polyethylene.
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).
authors.affiliation: Branch of FSUE "Scientific and Research Institute of Physical Chemistry named after L.Ya. Karpov", 109 km, Kievskoye Shosse, Obninsk, 249033 Kaluga Region Russia.
authors.forename: Natalia K
authors.initials: NK
authors.lastname: Kitaeva
authors.affiliation: Branch of FSUE "Scientific and Research Institute of Physical Chemistry named after L.Ya. Karpov", 109 km, Kievskoye Shosse, Obninsk, 249033 Kaluga Region Russia.
authors.forename: Vladimir R
authors.initials: VR
authors.lastname: Duflot
authors.affiliation: Branch of FSUE "Scientific and Research Institute of Physical Chemistry named after L.Ya. Karpov", 109 km, Kievskoye Shosse, Obninsk, 249033 Kaluga Region Russia.
authors.forename: Natalia S
authors.initials: NS
authors.lastname: Ilicheva
keywords: Acrylic acid; Gamma radiation; Graft polymerization; Polyethylene; Sodium styrene sulfonate