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Effect of the structure of ethylene-propylene-diene- graft-polystyrene graft copolymers on morphology and mechanical properties of SAN/EPDM blends (CROSBI ID 130945)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Ptiček, Anita ; Hrnjak-Murgić, Zlata ; Jelenčić, Jasenka Effect of the structure of ethylene-propylene-diene- graft-polystyrene graft copolymers on morphology and mechanical properties of SAN/EPDM blends // Express Polymer Letters, 1 (2007), 3; 173-179. doi: 10.3144/expresspolymlett.2007.27

Podaci o odgovornosti

Ptiček, Anita ; Hrnjak-Murgić, Zlata ; Jelenčić, Jasenka

engleski

Effect of the structure of ethylene-propylene-diene- graft-polystyrene graft copolymers on morphology and mechanical properties of SAN/EPDM blends

Ethylene-propylene-diene-graft-polystyrene (EPDM-g- PS) copolymers were synthesized to obtain different structures of graft copolymers with different graft lengths and graft densities. The structure of synthesized EPDM-g-PS copolymers was characterized by gel permeation chromatography (GPC) and by Fourier transforms infrared spectroscopy (FTIR). These presynthesized graft copolymers were added (5 phr) to styrene-acrylonitrile (SAN) and ethylene-propylene- diene (EPDM) blends, prepared to maintain the following SAN/EPDM ratios a) 95/5 and b) 90/10. SAN/EPDM blends were characterized by the determination of mechanical properties (tensile strength, elongation at break) while their morphology was inspected by scanning electronic microscopy, SEM. The obtained results show that various structures of EPDM-g-PS copolymers effects on miscibility in SAN/EPDM blends. Optimal concentration of side branches of graft copolymers provide the finest morphology and enhance mechanical properties.

graft copolymer ; styrene-acrylonitrile ; ethylene-propylene-diene monomer ; mechanical properties ; morphology

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Podaci o izdanju

1 (3)

2007.

173-179

objavljeno

1788-618X

10.3144/expresspolymlett.2007.27

Povezanost rada

Kemijsko inženjerstvo

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