STUDY OF THE EFFECT OF MONTMORILLONITE NANOLAYERS ON THE KINETICS OF STYRENE ATOM TRANSFER RADICAL POLYMERIZATION

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.

ROUGHANI MAMAGHANI H.; HADADIASL V.; NAJAFI M.; SALAMI KALAJAHI M.

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

Journal Paper

Paper Information

Journal: PETROLEUM RESEARCH Year:2010 | Volume:20 | Issue:62 Page(s): 3-15

Download Full-Text

Persian Verion

View:

829

Download:

Cites:

Information Journal Paper

Title

STUDY OF THE EFFECT OF MONTMORILLONITE NANOLAYERS ON THE KINETICS OF STYRENE ATOM TRANSFER RADICAL POLYMERIZATION

Author(s)

ROUGHANI MAMAGHANI H. | HADADIASL V. | NAJAFI M. | SALAMI KALAJAHI M. | Issue Writer Certificate

Keywords

MONTMORILLONITEQ2

KINETICSQ2

ATRPQ2

FREE CHAINQ3

ATTACHED CHAINQ3

Abstract

Modified nanoclay with a double bond on its modifier structure was employed to study the confinement effect of nanoclay in the atom transfer radical polymerization of styrene. The clay-attached and free polystyrene chains were used as evidence to such a kinetic study. The variations of monomer conversion and the linearity of semi-logarithmic kinetic plot, evidence of the living polymerization and constant radical concentration in the reaction medium, were revealed by the use of gas chromatography technique (GC). Number- and weight average molecular weights and polydispersity index of polymers were also derived from GPC data. According to the gel permeation chromatography (GPC) results, the number-average molecular weight increases linearly against the monomer conversion indicating the living nature of the polymerization. FREE CHAINs which showed higher molecular weights than the attached ones exhibited closer molecular weights values to the theoretical ones. In addition, lower PDI values were obtained in free polystyrene chains. In the case of free polystyrene chains, the initiator efficiency was lower than 1 and by increasing clay content, higher molecular weights were obtained. ATTACHED CHAINs revealed lower molecular weights and their initiator efficiency was higher than 1. By adding clay content, an increase of PDI value and a decrease of molecular weight were observed in attached polystyrene chains. Moreover, all the samples experienced a falling of PDI value from nearly 2 to almost 1.2 as the reaction progressed. FTIR results revealed an interaction between clay surface and monomer causing acceleration in the polymerization kinetic.

Cites

No record.

References

No record.

Cite

APA: Copy

ROUGHANI MAMAGHANI, H., HADADIASL, V., NAJAFI, M., & SALAMI KALAJAHI, M.. (2010). STUDY OF THE EFFECT OF MONTMORILLONITE NANOLAYERS ON THE KINETICS OF STYRENE ATOM TRANSFER RADICAL POLYMERIZATION. PETROLEUM RESEARCH, 20(62), 3-15. SID. https://sid.ir/paper/114772/en

Vancouver: Copy

ROUGHANI MAMAGHANI H., HADADIASL V., NAJAFI M., SALAMI KALAJAHI M.. STUDY OF THE EFFECT OF MONTMORILLONITE NANOLAYERS ON THE KINETICS OF STYRENE ATOM TRANSFER RADICAL POLYMERIZATION. PETROLEUM RESEARCH[Internet]. 2010;20(62):3-15. Available from: https://sid.ir/paper/114772/en

IEEE: Copy

H. ROUGHANI MAMAGHANI, V. HADADIASL, M. NAJAFI, and M. SALAMI KALAJAHI, “STUDY OF THE EFFECT OF MONTMORILLONITE NANOLAYERS ON THE KINETICS OF STYRENE ATOM TRANSFER RADICAL POLYMERIZATION,” PETROLEUM RESEARCH, vol. 20, no. 62, pp. 3–15, 2010, [Online]. Available: https://sid.ir/paper/114772/en

Related Journal Papers