Propylene homopolymerization and copolymerization with ethylene by acenaphthene-based α-diimine nickel complexes to access EPR-like elastomers

Literature Information

Publication Date 2021-10-12
DOI 10.1039/D1PY00923K
Impact Factor 5.582
Authors

Heng Liu, Chunyu Zhang, Xuequan Zhang


View Original

Abstract

Benefiting from the unique chain walking characteristic of late transition metal complexes, branched EPR-like elastomers bearing distinct differences compared to traditional linear EPRs are reported herein. Firstly, a series of acenaphthene-based α-diimine nickel complexes were prepared and thoroughly characterized. The single crystal structures of rac-Ni4 and rac-Ni5 were further determined by X-ray crystallography, in which intra-ligand π–π interactions could be clearly observed. Being activated by Et3Al2Cl3, rac-Ni1–Ni5 are able to promote propylene homopolymerization and copolymerization with ethylene with high catalytic activities, affording EPR-like products with unique branched structures and sequences. Through regulating polymerization parameters (temperature, monomer feeding ratio, etc.) and ligand structures that play a pivotal role in governing the chain walking abilities of the precatalyst, obviously different polymer products were obtained respectively from propylene homopolymerization and ethylene/propylene copolymerization. The former case afforded products with predominant P units, whereas the latter case gave rise to copolymers with predominant E units. Furthermore, dramatic changes in the P and E unit contents as well as their sequences were observed along with the variation in polymerization temperature.

Related Literature

Direct, uncorrected, molecule-free analysis of 236U from uranium-bearing particles with NAUTILUS: a new kind of mass spectrometer

D. Willingham, E. E. Groopman, K. S. Grabowski, L. Sangely

2018-09-07 Paper

DOI: 10.1039/C8AN01451E

Human-level blood cell counting on lens-free shadow images exploiting deep neural networks

DaeHan Ahn, JiYeong Lee, SangJun Moon, Taejoon Park

2018-10-03 Paper

DOI: 10.1039/C8AN01056K

Rapid single-cell detection and identification of pathogens by using surface-enhanced Raman spectroscopy

N. E. Dina, H. Zhou, A. Colniţă, N. Leopold, C. Coman, C. Haisch

2017-03-28 Paper

DOI: 10.1039/C7AN00106A

Interactions of Hg(ii) with oligonucleotides having thymine–thymine mispairs. Optimization of an impedimetric Hg(ii) sensor

Ajar Kamal, Zhe She, Renu Sharma, Heinz-Bernhard Kraatz

2017-04-19 Paper

DOI: 10.1039/C7AN00238F

Contents list

Front/Back Matter

DOI: 10.1039/C7AN90026K

Electrochemical aptasensors for zeatin detection based on MoS2 nanosheets and enzymatic signal amplification

Yunlei Zhou, Huanshun Yin, Yue Wang, Chengji Sui, Minghui Wang, Shiyun Ai

2018-09-07 Paper

DOI: 10.1039/C8AN01356J

Contents list

Front/Back Matter

DOI: 10.1039/C8AN90086H

Pushing the frontiers: boron-11 NMR as a method for quantitative boron analysis and its application to determine boric acid in commercial biocides

Luis Manuel Aguilera-Sáez, José Raúl Belmonte-Sánchez, Roberto Romero-González, José Luis Martínez Vidal, Francisco Javier Arrebola, Antonia Garrido Frenich, Ignacio Fernández

2018-09-05 Paper

DOI: 10.1039/C8AN00505B

Back cover

Cover

DOI: 10.1039/C7AN90030A

You might also like

Compound Q&A

What is the market or research trend for N-(4-Methoxybenzyl)-2-pyridinamine (CAS: 52818-63-0)?

N-(4-Methoxybenzyl)-2-pyridinamine (CAS: 52818-63-0) is increasingly being used ...

52818-63-0N-(4-Methoxybenzyl)-...
Compound Q&A

What precautions should be taken when handling Ethyl 4-(2-chlorophenyl)-1,3-thiazole-2-carboxylate (CAS: 1050507-06-6)?

When handling Ethyl 4-(2-chlorophenyl)-1,3-thiazole-2-carboxylate, appropriate p...

1050507-06-6Ethyl 4-(2-chlorophe...
Compound Q&A

What regulatory guidelines apply to diethyldiselane (CAS: 628-39-7)?

Diethyldiselane (CAS: 628-39-7) is classified under the Globally Harmonized Syst...

628-39-7Diethyldiselane
Compound Q&A

What is the market or research trend for oxocopper (CAS: 12053-18-8)?

The market for oxocopper (CAS: 12053-18-8) is primarily driven by its use in cat...

12053-18-8oxocopper; oxo-(oxoc...
Compound Q&A

What is the market or research trend for 5-{[(2-Methyl-2-propanyl)oxy]carbonyl}-5-azaspiro[2.4]heptane-7-carboxylic acid?

The market for 5-{[(2-Methyl-2-propanyl)oxy]carbonyl}-5-azaspiro[2.4]heptane-7-c...

1268519-54-55-{[(2-Methyl-2-prop...
Compound Q&A

What is 2-(1-Pyrrolidinyl)-4-pyridinamine (CAS: 35981-63-6)?

2-(1-Pyrrolidinyl)-4-pyridinamine is a chemical compound with the CAS number 359...

35981-63-62-(1-Pyrrolidinyl)-4...
Compound Q&A

What are the physical and chemical properties of 2-(3-Pyridinyl)-1-azabicyclo[2.2.2]octane (CAS: 91556-75-1)?

2-(3-Pyridinyl)-1-azabicyclo[2.2.2]octane (CAS: 91556-75-1) is a crystalline sol...

91556-75-12-(3-Pyridinyl)-1-az...
Compound Q&A

How is (S)-Alpha-allyl-proline hydrochloride (CAS: 129704-91-2) typically synthesized?

(S)-Alpha-allyl-proline hydrochloride is usually synthesized via a Wittig reacti...

129704-91-2(S)-Alpha-allyl-prol...
Compound Q&A

What is 3-Methyl-1,2-oxazole-5-carboxylic acid (CAS: 4857-42-5)?

3-Methyl-1,2-oxazole-5-carboxylic acid (CAS: 4857-42-5) is an organic compound w...

4857-42-53-Methyl-1,2-oxazole...
Compound Q&A

How is Lys-SMCC-DM1 (CAS: 1281816-04-3) typically synthesized?

Lys-SMCC-DM1 is synthesized via a multi-step process involving the coupling of S...

1281816-04-3Lys-SMCC-DM1

Source Journal

Polymer Chemistry

Polymer Chemistry
CiteScore: 8.6
Self-citation Rate: 7.3%
Articles per Year: 457

Polymer Chemistry welcomes submissions in all areas of polymer science that have a strong focus on macromolecular chemistry. Manuscripts may cover a broad range of fields, yet no direct application focus is required.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.