STUDY OF VARIATION IN CHEMICAL COMPOSITION OF EPDM ELASTOMERS SYNTHESIZED WITH ZIEGLER-NATTA CATALYST BASED ON VANADIUM DURING TERPOLYMERIZATION

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ZOHOURI GH.H.; VAKILI MOHAMMAD; JAMJAH R.; NEKOUMANESH HAGHIGHI MAHDI; AHMADJOU S.

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Journal: Iranian Journal of Polymer Science and Technology Year:2004 | Volume:16 | Issue:5 (ISSUE NO. 67) Page(s): 327-332

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Title

STUDY OF VARIATION IN CHEMICAL COMPOSITION OF EPDM ELASTOMERS SYNTHESIZED WITH ZIEGLER-NATTA CATALYST BASED ON VANADIUM DURING TERPOLYMERIZATION

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Keywords

ZIEGLER-NATTAQ4

VANADIUM CATALYSTQ4

SOLUTION POLYMERIZATIONQ4

EPDMQ4

CHEMICAL COMPOSITIONQ4

Abstract

ZIEGLER-NATTA catalyst system of VCl4/Al(iBu)3/CHCl3 for SOLUTION POLYMERIZATION of ethylene, propylene and ethylidene norbornene (ENB) was used. ENB Was added batchwise, while ethylene and propylene gases were added continuously depending on the reactivity of the catalyst. The pressure inside the reactor was kept constant at 1±0.1 bar, but the relative pressure of propylene to ethylene was Pp/Pe=1.3:1. CHCl3 was used as a promoter. Polymer was precipitated from n-heptane using methanol as a non-solvent. Activity of the catalyst was decreased by polymerization time. The behavior also affected the composition of EPDM obtained. Ethylene and ENB content of the polymer almost increased linearly with smooth slope, while ENB content of polymer decreased sharply, somewhat exponentially decay behavior was observed.

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APA: Copy

ZOHOURI, GH.H., VAKILI, MOHAMMAD, JAMJAH, R., NEKOUMANESH HAGHIGHI, MAHDI, & AHMADJOU, S.. (2004). STUDY OF VARIATION IN CHEMICAL COMPOSITION OF EPDM ELASTOMERS SYNTHESIZED WITH ZIEGLER-NATTA CATALYST BASED ON VANADIUM DURING TERPOLYMERIZATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 16(5 (ISSUE NO. 67)), 327-332. SID. https://sid.ir/paper/6167/en

Vancouver: Copy

ZOHOURI GH.H., VAKILI MOHAMMAD, JAMJAH R., NEKOUMANESH HAGHIGHI MAHDI, AHMADJOU S.. STUDY OF VARIATION IN CHEMICAL COMPOSITION OF EPDM ELASTOMERS SYNTHESIZED WITH ZIEGLER-NATTA CATALYST BASED ON VANADIUM DURING TERPOLYMERIZATION. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2004;16(5 (ISSUE NO. 67)):327-332. Available from: https://sid.ir/paper/6167/en

IEEE: Copy

GH.H. ZOHOURI, MOHAMMAD VAKILI, R. JAMJAH, MAHDI NEKOUMANESH HAGHIGHI, and S. AHMADJOU, “STUDY OF VARIATION IN CHEMICAL COMPOSITION OF EPDM ELASTOMERS SYNTHESIZED WITH ZIEGLER-NATTA CATALYST BASED ON VANADIUM DURING TERPOLYMERIZATION,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 16, no. 5 (ISSUE NO. 67), pp. 327–332, 2004, [Online]. Available: https://sid.ir/paper/6167/en

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