Next Article in Journal
Self-Healing Anti-Atomic-Oxygen Phosphorus-Containing Polyimide Film via Molecular Level Incorporation of Nanocage Trisilanolphenyl POSS: Preparation and Characterization
Next Article in Special Issue
Copolymerization of Norbornene and Styrene with Anilinonaphthoquinone-Ligated Nickel Complexes
Previous Article in Journal
Catalytic Activity of Oxidized Carbon Waste Ashes for the Crosslinking of Epoxy Resins
Previous Article in Special Issue
Catalyst Speciation during ansa-Zirconocene-Catalyzed Polymerization of 1-Hexene Studied by UV-vis Spectroscopy—Formation and Partial Re-Activation of Zr-Allyl Intermediates
Open AccessReview

Development of Large-Scale Stopped-Flow Technique and its Application in Elucidation of Initial Ziegler–Natta Olefin Polymerization Kinetics

Graduate School of Advanced Science and Technology, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
*
Author to whom correspondence should be addressed.
Polymers 2019, 11(6), 1012; https://doi.org/10.3390/polym11061012
Received: 10 May 2019 / Revised: 4 June 2019 / Accepted: 5 June 2019 / Published: 7 June 2019
(This article belongs to the Special Issue Catalytic Polymerization)
The stopped-flow (SF) technique has been extensively applied to study Ziegler–Natta (ZN) olefin polymerization kinetics within an extremely short period (typically <0.2 s) for understanding the nature of the active sites as well as the polymerization mechanisms through microstructure analyses of obtained polymers. In spite of its great applicability, a small amount of polymer that is yielded in a short-time polymerization has been a major bottleneck for polymer characterizations. In order to overcome this limitation, a large-scale SF (LSF) system has been developed, which offers stable and scalable polymerization over an expanded time range from a few tens milliseconds to several seconds. The scalability of the LSF technique has been further improved by introducing a new quenching protocol. With these advantages, the LSF technique has been effectively applied to address several unknown issues in ZN catalysis, such as the role of physical and chemical transformations of a catalyst on the initial polymerization kinetics, and regiochemistry of ZN propylene polymerization. Here, we review the development of the LSF technique and recent efforts for understanding heterogeneous ZN olefin polymerization catalysis with this new system. View Full-Text
Keywords: Ziegler–Natta catalysis; active sites; propylene polymerization; kinetics; stopped-flow technique Ziegler–Natta catalysis; active sites; propylene polymerization; kinetics; stopped-flow technique
Show Figures

Figure 1

MDPI and ACS Style

Thakur, A.; Wada, T.; Chammingkwan, P.; Terano, M.; Taniike, T. Development of Large-Scale Stopped-Flow Technique and its Application in Elucidation of Initial Ziegler–Natta Olefin Polymerization Kinetics. Polymers 2019, 11, 1012. https://doi.org/10.3390/polym11061012

AMA Style

Thakur A, Wada T, Chammingkwan P, Terano M, Taniike T. Development of Large-Scale Stopped-Flow Technique and its Application in Elucidation of Initial Ziegler–Natta Olefin Polymerization Kinetics. Polymers. 2019; 11(6):1012. https://doi.org/10.3390/polym11061012

Chicago/Turabian Style

Thakur, Ashutosh; Wada, Toru; Chammingkwan, Patchanee; Terano, Minoru; Taniike, Toshiaki. 2019. "Development of Large-Scale Stopped-Flow Technique and its Application in Elucidation of Initial Ziegler–Natta Olefin Polymerization Kinetics" Polymers 11, no. 6: 1012. https://doi.org/10.3390/polym11061012

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop