Ethylene/Myrcene Copolymers as New Bio-Based Elastomers Prepared by Coordination Polymerization Using Titanium Catalysts

2021 ◽  
Author(s):  
Suphitchaya Kitphaitun ◽  
Sapanna Chaimongkolkunasin ◽  
Jeeranun Manit ◽  
Ryoji Makino ◽  
Joji Kadota ◽  
...  
Keyword(s):  
Coordination Polymerization ◽  
Titanium Catalysts

Mechanism of the propagation step in the anionic polymerization of styrene

1980 ◽  
Vol 45 (4) ◽  
pp. 1047-1055 ◽  
Author(s):  
Miroslav Kašpar ◽  
Jiří Trekoval
Keyword(s):  
Experimental Data ◽  
Induction Period ◽  
Anionic Polymerization ◽  
Reactive Intermediate ◽  
Coordination Polymerization ◽  
Kinetic Dependence ◽  
Mathematical Solution ◽  
Slow Reaction

The paper is dealing with an investigation of the kinetic dependence of the propagation step in the anionic coordination polymerization of styrene in benzene at 303 K with "living" oligostyryllithium as initiator at the onset of the reaction. A short but distinct induction period was found, indicating a preceding slow reaction leading to the formation of a reactive intermediate, which behaves as the initiator of the reaction. Using results obtained in the first paper of this series, a new mechanism of propagation has been suggested, the mathematical solution of which is correlated with experimental data.

The mechanism of the anionic coordination polymerization of isoprene

1980 ◽  
Vol 45 (9) ◽  
pp. 2391-2399 ◽  
Author(s):  
Miroslav Kašpar ◽  
Jiří Trekoval
Keyword(s):  
Chromatographic Method ◽  
Initial Period ◽  
Reaction Scheme ◽  
Polymerization Kinetics ◽  
Coordination Polymerization ◽  
Initial Concentration ◽  
The Cross ◽  
Gas Chromatographic Method ◽  
Kinetics Of

The polymerization kinetics of isoprene (2-methyl-1,3-butadiene) in benzene with butyllithium as the initiator was investigated by the gas chromatographic method. After completion of the initial period of the reaction, its order with respect to the initial concentration of initiator is negative at the concentrations of the latter between 0.01 and 0.25 mol/l, and positive at higher concentrations. A reaction scheme has been suggested with respect to the "cross" association of butyllithium and of the "living" oligoisoprene.

Ureate Titanium Catalysts for Hydroaminoalkylation: Using Ligand Design to Increase Reactivity and Utility

ACS Catalysis ◽  
2021 ◽  
pp. 4550-4560
Author(s):  
Manfred Manßen ◽  
Danfeng Deng ◽  
Cameron H. M. Zheng ◽  
Rebecca C. DiPucchio ◽  
Dafa Chen ◽  
...  
Keyword(s):  
Ligand Design ◽  
Titanium Catalysts

Synthesis of Well-Defined Glycopolymers by π-Allylnickel-Catalyzed Living Coordination Polymerization

2001 ◽  
Vol 34 (13) ◽  
pp. 4294-4295 ◽  
Author(s):  
Jia Wang ◽  
Ikuyoshi Tomita ◽  
Takeshi Endo
Keyword(s):  
Coordination Polymerization

Coordination Polymerization of Metal Azides and Powerful Nitrogen-Rich Ligand toward Primary Explosives with Excellent Energetic Performances

2017 ◽  
Vol 29 (22) ◽  
pp. 9725-9733 ◽  
Author(s):  
Jian-Gang Xu ◽  
Cai Sun ◽  
Ming-Jian Zhang ◽  
Bin-Wen Liu ◽  
Xiao-Zhen Li ◽  
...  
Keyword(s):  
Coordination Polymerization ◽  
Powerful Nitrogen

Polar‐Group Activated Isospecific Coordination Polymerization of ortho ‐Methoxystyrene: Effects of Central Metals and Ligands

2019 ◽  
Vol 25 (8) ◽  
pp. 2043-2050 ◽  
Author(s):  
Yunjie Chai ◽  
Lingfang Wang ◽  
Dongtao Liu ◽  
Zichuan Wang ◽  
Mingtao Run ◽  
...  
Keyword(s):  
Polar Group ◽  
Coordination Polymerization
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