Polystyrene Chains with Different Grafting Densities on the Surface of Graphene Oxide by

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Mardani Hanieh; ROGHANI MAMAQANI HOSSEIN

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Iranian Journal of Polymer Science and Technology Year:2020 | Volume:33 | Issue:3 Page(s): 256-271

Download Full-Text

Persian Verion

View:

222

Download:

Cites:

Information Journal Paper

Title

Polystyrene Chains with Different Grafting Densities on the Surface of Graphene Oxide by "Grafting Through" Method

Author(s)

Mardani Hanieh | ROGHANI MAMAQANI HOSSEIN | Issue Writer Certificate

Keywords

PolystyreneQ2

graphene oxideQ1

reversible additionfragmentation chain transfer polymerizationQ1

grafting throughQ1

grafting densityQ1

Abstract

ypothesis: graphene oxide (GO) modified with a double bond-containing chemical was used in the preparation of Polystyrene composites by combination of “ grafting through” and reversible addition-fragmentation chain-transfer (RAFT) polymerization methods. The main objectives were (1) application of two reaction sites for in situ grafting of Polystyrene chains from the GO surface, (2) increasing of grafting density in the polymerization process by grafting through two different sites and (3) evaluation of styrene RAFT polymerization in two different grafting densities and various GO contents. Methods: After modification of GO with ethylenediamine (EDA) using nucleophilic ring opening reaction that is resulted in amine-functionalized GO (GOA), coupling reaction was conducted between the GOA and (3-methacryloxypropyl) dimethylchlorosilane (MCS) to obtain GOOHD layers with different modifier contents. Then, grafting through RAFT polymerization method was utilized for preparation of Polystyrene composites. Findings: X-ray photoelectron spectroscopy shows successful modification of the GO layers with EDA and MCS. Molecular bonding characterization was performed by Fourier transform infrared spectroscopy for the neat and modified GO. Variations in electron conjugation were studied by Raman spectroscopy. Molecular weight and polydispersity index of the free and anchored Polystyrene chains were calculated from the size exclusion chromatography. By using thermogravimetric analysis, thermal properties and grafting ratios of the modifiers and Polystyrene chains were studied. Grafting ratio of the modifiers was 12. 9% and 7. 5% for the modified GO layers with high and low grafting densities, respectively. Morphology of the GO layers was investigated through transmission and scanning electron microscopy. Oxidation changed the flat and smooth graphite to wrinkled layers, and grafting Polystyrene chains resulted in turbid layers.

Cites

No record.

References

No record.

Cite

APA: Copy

Mardani, Hanieh, & ROGHANI MAMAQANI, HOSSEIN. (2020). Polystyrene Chains with Different Grafting Densities on the Surface of Graphene Oxide by "Grafting Through" Method. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 33(3 ), 256-271. SID. https://sid.ir/paper/386722/en

Vancouver: Copy

Mardani Hanieh, ROGHANI MAMAQANI HOSSEIN. Polystyrene Chains with Different Grafting Densities on the Surface of Graphene Oxide by "Grafting Through" Method. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2020;33(3 ):256-271. Available from: https://sid.ir/paper/386722/en

IEEE: Copy

Hanieh Mardani, and HOSSEIN ROGHANI MAMAQANI, “Polystyrene Chains with Different Grafting Densities on the Surface of Graphene Oxide by "Grafting Through" Method,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 33, no. 3 , pp. 256–271, 2020, [Online]. Available: https://sid.ir/paper/386722/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops