Kinetic study of TBD catalyzed δ-valerolactone polymerization using a gas-driven droplet flow reactor
Literature Information
Publication Date
2019-03-12
DOI
10.1039/C9RE00046A
Impact Factor
4.239
Authors
Shiyao Lu, Kai Wang
View Original
Abstract
The kinetics of aliphatic polyester synthesis is critical to understanding the mechanism of ring-opening polymerization and making the reaction more controllable. In this paper, we introduce a gas-driven droplet flow reactor to determine the reaction kinetics of 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD) catalyzed δ-valerolactone polymerization. Only 2 mL reaction solution was used for each test, which significantly reduced the work in preparing the anhydrous reactants. The experimental results indicated that the orders of the catalyst and the alcohol in the kinetic model are close to 1 and 0, respectively, and therefore the rate-determining step was the activation reaction between the monomer and catalyst. Then, the activated monomer quickly reacts with the end hydroxyl in the polymer chain to finish the reaction. In the end, we calculated the activation energy of the rate-determining reaction, which is only 7.302 ± 0.047 kJ mol−1.
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Source Journal
Reaction Chemistry & Engineering
CiteScore:
0
Self-citation Rate:
8.8%
Articles per Year:
284
Reaction Chemistry & Engineering is an interdisciplinary journal reporting cutting-edge research focused on enhancing the understanding and efficiency of reactions. Reaction engineering leverages the interface where fundamental molecular chemistry meets chemical engineering and technology. Challenges in chemistry can be overcome by the application of new technologies, while engineers may find improved solutions for process development from the latest developments in reaction chemistry. Reaction Chemistry & Engineering is a unique forum for researchers whose interests span the broad areas of chemical engineering and chemical sciences to come together in solving problems of importance to wider society. All papers should be written to be approachable by readers across the engineering and chemical sciences. Papers that consider multiple scales, from the laboratory up to and including plant scale, are particularly encouraged.
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![trans,trans-4-n-Propyl-4-[4-(trifluoromethoxy)phenyl]bicyclohexyl structure](https://static.chemtradehub.com/structs/133/133937-72-1-25ef.webp "trans,trans-4-n-Propyl-4-[4-(trifluoromethoxy)phenyl]bicyclohexyl structure")
trans,trans-4-n-Propyl-4-[4-(trifluoromethoxy)phenyl]bicyclohexyl
CAS Number:
133937-72-1
Molecular Formula:
C22H31F3O
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