Effect of Maleic Anhydride on the Chain Relaxation of polystyrene-block-ethylene-co-butylene-block-polystyrene Copolymer/ Amine Modified Graphene Nanocomposite

سال انتشار: 1393
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 369

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شناسه ملی سند علمی:

ISPST11_398

تاریخ نمایه سازی: 6 اردیبهشت 1396

چکیده مقاله:

The effect of maleic anhydride functional group on the alignment and its recovery to the initial state of hexagonally packed cylindrical (HEX) microdomains of polystyrene-block-ethylene-co-butylene-block-polystyrene (SEBS) triblock copolymers in the presence of octadecylamine modified graphene (GO-ODA) was studied. By applying the large amplitude oscillatory shear (LAOS), cylindrical microdomains aligns toward the flow direction. Chain relaxation that was probed by measuring linear viscoelastic measurements for different resting times after alignment, indicated that the recovery of the cylinders orientation in the SEBS-g-MA nanocomposite sample was lower than that of the SEBS nanocomposite. This is due to cluster formation between MA and ODA in SEBS-g-MA nanocomposite

نویسندگان

amir Faramarzi JolfaeiaNazockdast

Department of Polymer Engineering and Color Technology Amirkabir University of Technology, P.O.Box-15875-4413, Tehran, Iran

jaber Nasrollah gavgani

Department of Polymer Engineering and Color Technology Amirkabir University of Technology, P.O.Box-15875-4413, Tehran, Iran Department of Chemical Engineering, Amirkabir University of Technology,P.O.Box 15875-4413, Tehran, Iran

Fatemeh goharpey

Department of Polymer Engineering and Color Technology Amirkabir University of Technology, P.O.Box-15875-4413, Tehran, Iran

hosein nazockdast

Department of Polymer Engineering and Color Technology Amirkabir University of Technology, P.O.Box-15875-4413, Tehran, Iran