Temperature effect on propylene polymerization behavior over Ziegler-Natta catalyst with different cocatalyst systems
This study focused on the effect of temperature in propylene polymerization behaviors up on different cocatalysts employed. It revealed that triethylaluminum (TEA) exhibited higher activity than tri-n-octylaluminum (TnOA) with the optimal temperature of 60 °C, whereas the over reduction of catalyst...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2020-01-01
|
| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ab726d |
| _version_ | 1797746576169369600 |
|---|---|
| author | Thanyaporn Pongchan Piyasan Praserthdam Bunjerd Jongsomjit |
| author_facet | Thanyaporn Pongchan Piyasan Praserthdam Bunjerd Jongsomjit |
| author_sort | Thanyaporn Pongchan |
| collection | DOAJ |
| description | This study focused on the effect of temperature in propylene polymerization behaviors up on different cocatalysts employed. It revealed that triethylaluminum (TEA) exhibited higher activity than tri-n-octylaluminum (TnOA) with the optimal temperature of 60 °C, whereas the over reduction of catalyst occurred at 70 °C. However, at low temperature (ca. 50 °C), the mixed cocatalysts (TEA + TnOA) gave the highest activity among the sole cocatalyst. This can be attributed to the occurrence and stabilization of proper Ti oxidation state (Ti ^3+ ) form as proven by the electron spin resonance (ESR) with the combination of cocatalysts. In addition, temperatures and types of cocatalyst did not have significant effects on morphology and crystallinity of polymer. |
| first_indexed | 2024-03-12T15:39:45Z |
| format | Article |
| id | doaj.art-f2893a39746645c7ae44e414dfa81a62 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:39:45Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-f2893a39746645c7ae44e414dfa81a622023-08-09T16:04:26ZengIOP PublishingMaterials Research Express2053-15912020-01-017202530910.1088/2053-1591/ab726dTemperature effect on propylene polymerization behavior over Ziegler-Natta catalyst with different cocatalyst systemsThanyaporn Pongchan0Piyasan Praserthdam1Bunjerd Jongsomjit2https://orcid.org/0000-0002-9558-9190Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University , Bangkok 10330, ThailandCenter of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University , Bangkok 10330, ThailandCenter of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University , Bangkok 10330, ThailandThis study focused on the effect of temperature in propylene polymerization behaviors up on different cocatalysts employed. It revealed that triethylaluminum (TEA) exhibited higher activity than tri-n-octylaluminum (TnOA) with the optimal temperature of 60 °C, whereas the over reduction of catalyst occurred at 70 °C. However, at low temperature (ca. 50 °C), the mixed cocatalysts (TEA + TnOA) gave the highest activity among the sole cocatalyst. This can be attributed to the occurrence and stabilization of proper Ti oxidation state (Ti ^3+ ) form as proven by the electron spin resonance (ESR) with the combination of cocatalysts. In addition, temperatures and types of cocatalyst did not have significant effects on morphology and crystallinity of polymer.https://doi.org/10.1088/2053-1591/ab726dpropylene polymerizationtemperature effecttriethylaluminumtrioctylaluminumelectron spin resonanceziegler-natta catalyst |
| spellingShingle | Thanyaporn Pongchan Piyasan Praserthdam Bunjerd Jongsomjit Temperature effect on propylene polymerization behavior over Ziegler-Natta catalyst with different cocatalyst systems Materials Research Express propylene polymerization temperature effect triethylaluminum trioctylaluminum electron spin resonance ziegler-natta catalyst |
| title | Temperature effect on propylene polymerization behavior over Ziegler-Natta catalyst with different cocatalyst systems |
| title_full | Temperature effect on propylene polymerization behavior over Ziegler-Natta catalyst with different cocatalyst systems |
| title_fullStr | Temperature effect on propylene polymerization behavior over Ziegler-Natta catalyst with different cocatalyst systems |
| title_full_unstemmed | Temperature effect on propylene polymerization behavior over Ziegler-Natta catalyst with different cocatalyst systems |
| title_short | Temperature effect on propylene polymerization behavior over Ziegler-Natta catalyst with different cocatalyst systems |
| title_sort | temperature effect on propylene polymerization behavior over ziegler natta catalyst with different cocatalyst systems |
| topic | propylene polymerization temperature effect triethylaluminum trioctylaluminum electron spin resonance ziegler-natta catalyst |
| url | https://doi.org/10.1088/2053-1591/ab726d |
| work_keys_str_mv | AT thanyapornpongchan temperatureeffectonpropylenepolymerizationbehavioroverzieglernattacatalystwithdifferentcocatalystsystems AT piyasanpraserthdam temperatureeffectonpropylenepolymerizationbehavioroverzieglernattacatalystwithdifferentcocatalystsystems AT bunjerdjongsomjit temperatureeffectonpropylenepolymerizationbehavioroverzieglernattacatalystwithdifferentcocatalystsystems |