TY  - JOUR
AU  - Grković, Mirjana
AU  - Stojanović, Dušica
AU  - Kojović, Aleksandar
AU  - Strnad, Simona
AU  - Kreže, Tatjana
AU  - Aleksić, Radoslav
AU  - Uskoković, Petar
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3068
AB  - Polyethylene oxide (PEO) functionalized graphene (f-G) was prepared by ultrasonication of pristine graphene in PEO aqueous solution. The feasible sonication protocol of PEO degradation and graphene functionalization enabled fabrication of solvent cast nanocomposites. Additionally, the steps to form new bio-nanocomposite films have been described. Taking the advantage of the combination of graphene, PEO and keratin fibers from poultry feather waste, the aforementioned bio-nanocomposite films were designed with extraordinary properties allowing the films to have promising applications as eventual packaging materials and enabling bio-waste keratin to be converted into value-added materials. Compared to neat PEO, addition of only 0.3 wt% f-G provided an increase of 92% to the storage modulus. These findings are similar to the nanoindentation results, which yielded increases in the reduced modulus of the same composition by about 92%. Nanoindentation testing shows that the incorporation of 0.3 wt% f-G increased the reduced modulus and hardness of the keratin-PEO blend by about 155 and 99%, respectively.
PB  - Royal Society of Chemistry
T2  - RSC Advances
T1  - Keratin-polyethylene oxide bio-nanocomposites reinforced with ultrasonically functionalized graphene
EP  - 91287
IS  - 111
SP  - 91280
VL  - 5
DO  - 10.1039/c5ra12402f
ER  - 

@article{
author = "Grković, Mirjana and Stojanović, Dušica and Kojović, Aleksandar and Strnad, Simona and Kreže, Tatjana and Aleksić, Radoslav and Uskoković, Petar",
year = "2015",
abstract = "Polyethylene oxide (PEO) functionalized graphene (f-G) was prepared by ultrasonication of pristine graphene in PEO aqueous solution. The feasible sonication protocol of PEO degradation and graphene functionalization enabled fabrication of solvent cast nanocomposites. Additionally, the steps to form new bio-nanocomposite films have been described. Taking the advantage of the combination of graphene, PEO and keratin fibers from poultry feather waste, the aforementioned bio-nanocomposite films were designed with extraordinary properties allowing the films to have promising applications as eventual packaging materials and enabling bio-waste keratin to be converted into value-added materials. Compared to neat PEO, addition of only 0.3 wt% f-G provided an increase of 92% to the storage modulus. These findings are similar to the nanoindentation results, which yielded increases in the reduced modulus of the same composition by about 92%. Nanoindentation testing shows that the incorporation of 0.3 wt% f-G increased the reduced modulus and hardness of the keratin-PEO blend by about 155 and 99%, respectively.",
publisher = "Royal Society of Chemistry",
journal = "RSC Advances",
title = "Keratin-polyethylene oxide bio-nanocomposites reinforced with ultrasonically functionalized graphene",
pages = "91287-91280",
number = "111",
volume = "5",
doi = "10.1039/c5ra12402f"
}

Grković, M., Stojanović, D., Kojović, A., Strnad, S., Kreže, T., Aleksić, R.,& Uskoković, P.. (2015). Keratin-polyethylene oxide bio-nanocomposites reinforced with ultrasonically functionalized graphene. in RSC Advances
Royal Society of Chemistry., 5(111), 91280-91287.
https://doi.org/10.1039/c5ra12402f

Grković M, Stojanović D, Kojović A, Strnad S, Kreže T, Aleksić R, Uskoković P. Keratin-polyethylene oxide bio-nanocomposites reinforced with ultrasonically functionalized graphene. in RSC Advances. 2015;5(111):91280-91287.
doi:10.1039/c5ra12402f .

Grković, Mirjana, Stojanović, Dušica, Kojović, Aleksandar, Strnad, Simona, Kreže, Tatjana, Aleksić, Radoslav, Uskoković, Petar, "Keratin-polyethylene oxide bio-nanocomposites reinforced with ultrasonically functionalized graphene" in RSC Advances, 5, no. 111 (2015):91280-91287,
https://doi.org/10.1039/c5ra12402f . .