Open AccessSynthesis of graphene/polystyrene nanocomposite by microemulsion polymerization
Author(s) -
Cuc Thi Thanh Phan,
ThanhTam Mai,
Anh Huynh Tram Pham,
Huy Thuc Ha
Publication year - 2013
Publication title -
khoa học công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-0128
DOI - 10.32508/stdj.v16i4.1601
Subject(s) - graphene , materials science , polystyrene , nanocomposite , microemulsion , polymerization , thermal stability , graphene oxide paper , graphite oxide , chemical engineering , in situ polymerization , graphite , oxide , glass transition , composite material , polymer , nanotechnology , pulmonary surfactant , engineering , metallurgy
Graphene/polystyrene nanocomposites were prepared by water-based in situ microemulsion polymerization. Graphene was synthesized from graphite oxide, and then modified by diazonium salt of sulfanilic acid. FT-IR spectrum indicated the presence of functional group SO3- on the surface of graphene. It helps graphene not aggregate in water after reduced by NaBH4, which supported water-based microemulsion process. Ranman spectrum and Tramission Electronic Microscopy (TEM) showed graphene dispersed well in polystyrene matrix. However, there were still some tactoids where graphene had multilayer. The addition of GO increased the glass transition temperature of the PS/GO composites. The storage modulus and thermal stability of the nanocomposites were also improved compared with PS.