STUDY ON THE EFFECTS OF TEMPERATURE, TIME AND THE POLICY OF PREPOLYMERIZATION ON PARTICLE MORPHOLOGY IN PROPYLENE SLURRY POLYMERIZATION WITH HETEROGENEOUS ZIEGLER-NATTA CATALYSTS

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.

PIR CHERAGHI GH.R.; POUR MAHDIAN S.; VATANKHAH M.

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:2008 | Volume:20 | Issue:5 (ISSUE NO. 89) Page(s): 417-428

Download Full-Text

Persian Verion

View:

1,167

Download:

Cites:

Information Journal Paper

Title

STUDY ON THE EFFECTS OF TEMPERATURE, TIME AND THE POLICY OF PREPOLYMERIZATION ON PARTICLE MORPHOLOGY IN PROPYLENE SLURRY POLYMERIZATION WITH HETEROGENEOUS ZIEGLER-NATTA CATALYSTS

Author(s)

PIR CHERAGHI GH.R. | POUR MAHDIAN S. | VATANKHAH M. | Issue Writer Certificate

Keywords

PREPOLYMERIZATIONQ3

MORPHOLOGYQ2

POLYPROPYLENEQ3

ZIEGLER-NATTAQ3

SLURRY POLYMERIZATIONQ3

Abstract

The effects of temperature, time and the strategy of PREPOLYMERIZATION were studied on the MORPHOLOGY of POLYPROPYLENE particles. Propylene polymerization was carried out in slurry phase using 4th generation of ZIEGLER-NATTA Catalyst, cyclohexylmethyl dimethoxysilane as external electron donor, and triethyl aluminum as co-catalyst. PREPOLYMERIZATIONs were carried out based on two strategies: isothermal and non-isothermal conditions. Particle imaging using SEM, bulk density, and particle size distribution was used to analyse the particle MORPHOLOGY. It was found that the variation of initial condition together with the change in the mechanism of particle fracture has a dominant effect on particle MORPHOLOGY. Each combination between the temperature and reaction time causes to have a special effect on the product particle MORPHOLOGY. It has become clear that in isothermal PREPOLYMERIZATION, spherical particles with identical properties were produced. In low temperature experiments particles with porous surface were observed. At increasing temperature, however, the pores disappeared. Non-isothermal PREPOLYMERIZATION produced different morphological types. In all experiments coreshell structures were observed that seemed to be related to the structure of catalysts.

Cites

No record.

References

No record.

Cite

APA: Copy

PIR CHERAGHI, GH.R., POUR MAHDIAN, S., & VATANKHAH, M.. (2008). STUDY ON THE EFFECTS OF TEMPERATURE, TIME AND THE POLICY OF PREPOLYMERIZATION ON PARTICLE MORPHOLOGY IN PROPYLENE SLURRY POLYMERIZATION WITH HETEROGENEOUS ZIEGLER-NATTA CATALYSTS. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 20(5 (ISSUE NO. 89)), 417-428. SID. https://sid.ir/paper/6546/en

Vancouver: Copy

PIR CHERAGHI GH.R., POUR MAHDIAN S., VATANKHAH M.. STUDY ON THE EFFECTS OF TEMPERATURE, TIME AND THE POLICY OF PREPOLYMERIZATION ON PARTICLE MORPHOLOGY IN PROPYLENE SLURRY POLYMERIZATION WITH HETEROGENEOUS ZIEGLER-NATTA CATALYSTS. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2008;20(5 (ISSUE NO. 89)):417-428. Available from: https://sid.ir/paper/6546/en

IEEE: Copy

GH.R. PIR CHERAGHI, S. POUR MAHDIAN, and M. VATANKHAH, “STUDY ON THE EFFECTS OF TEMPERATURE, TIME AND THE POLICY OF PREPOLYMERIZATION ON PARTICLE MORPHOLOGY IN PROPYLENE SLURRY POLYMERIZATION WITH HETEROGENEOUS ZIEGLER-NATTA CATALYSTS,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 20, no. 5 (ISSUE NO. 89), pp. 417–428, 2008, [Online]. Available: https://sid.ir/paper/6546/en

Related Journal Papers