EFFECT OF HYDROGEN ON OPERATION OF 
4TH GENERATION OF ZIEGLER- NATTA CATALYST IN SLURRY POLYMERIZATION OF PROPENE

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SEKHAVATPOUR Z.; SHOKRAVI ABAS; NADERPOUR NAVID

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

Journal Paper

Paper Information

Journal: Nashrieh Shimi va Mohandesi Shimi Iran Year:2010 | Volume:29 | Issue:2 Page(s): 41-51

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Title

EFFECT OF HYDROGEN ON OPERATION OF 4TH GENERATION OF ZIEGLER- NATTA CATALYST IN SLURRY POLYMERIZATION OF PROPENE

Author(s)

SEKHAVATPOUR Z. | SHOKRAVI ABAS | NADERPOUR NAVID | Issue Writer Certificate

Keywords

HYDROGENQ2

ZIEGLER-NATTA CATALYSTQ3

POLYMERIZATIONQ3

CHAIN TRANSFER REACTIONQ3

Abstract

In this paper the influence of HYDROGEN during propene POLYMERIZATION with 4th generation of ZIEGLER-NATTA CATALYST was investigated in terms of variations in catalyst activity, isotacticity, melt flow index and melting temperature of resulting powder. SEM images, bulk density and particle size distribution were used to analyze the morphology of polymer and catalyst particles. Catalyst activity and isotacticity were found to significantly increase with the addition of HYDROGEN, but there was a maximum which after that activity and isotacticity decreased. Melting temperature also showed this trend. Melt flow index of polymers was increased by addition of HYDROGEN which in turn showed the molecular weight of polymers was decreased; therefore HYDROGEN plays an important role in CHAIN TRANSFER REACTION. Particle size of polymers was obviously increased in the presence of HYDROGEN. Particle size distribution plots of catalyst and resulting polymers illustrated that replication phenomenon had occurred. SEM images demonstrated that there was core-shell structure in all resulting powders. Increase in the POLYMERIZATION rate in the present of HYDROGEN caused to improve morphology of polymers.

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APA: Copy

SEKHAVATPOUR, Z., SHOKRAVI, ABAS, & NADERPOUR, NAVID. (2010). EFFECT OF HYDROGEN ON OPERATION OF 4^TH GENERATION OF ZIEGLER- NATTA CATALYST IN SLURRY POLYMERIZATION OF PROPENE. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), 29(2), 41-51. SID. https://sid.ir/paper/26355/en

Vancouver: Copy

SEKHAVATPOUR Z., SHOKRAVI ABAS, NADERPOUR NAVID. EFFECT OF HYDROGEN ON OPERATION OF 4^TH GENERATION OF ZIEGLER- NATTA CATALYST IN SLURRY POLYMERIZATION OF PROPENE. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN)[Internet]. 2010;29(2):41-51. Available from: https://sid.ir/paper/26355/en

IEEE: Copy

Z. SEKHAVATPOUR, ABAS SHOKRAVI, and NAVID NADERPOUR, “EFFECT OF HYDROGEN ON OPERATION OF 4^TH GENERATION OF ZIEGLER- NATTA CATALYST IN SLURRY POLYMERIZATION OF PROPENE,” NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), vol. 29, no. 2, pp. 41–51, 2010, [Online]. Available: https://sid.ir/paper/26355/en

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