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Structural and Thermal Properties of Ethylene-Norbornene Copolymers Obtained Using Vanadium Homogeneous and SIL Catalysts
The series of ethylene-norbornene (E-NB) copolymers was obtained using different vanadium homogeneous and supported ionic liquid (SIL) catalyst systems. The (13)C and (1)H NMR (carbon and proton nuclear magnetic resonance spectroscopy) together with differential scanning calorimetry (DSC) were appli...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7690451/ https://www.ncbi.nlm.nih.gov/pubmed/33105638 http://dx.doi.org/10.3390/polym12112433 |
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author | Groch, Paweł Bihun-Kisiel, Anna Piontek, Aleksandra Ochędzan-Siodłak, Wioletta |
author_facet | Groch, Paweł Bihun-Kisiel, Anna Piontek, Aleksandra Ochędzan-Siodłak, Wioletta |
author_sort | Groch, Paweł |
collection | PubMed |
description | The series of ethylene-norbornene (E-NB) copolymers was obtained using different vanadium homogeneous and supported ionic liquid (SIL) catalyst systems. The (13)C and (1)H NMR (carbon and proton nuclear magnetic resonance spectroscopy) together with differential scanning calorimetry (DSC) were applied to determine the composition of copolymers such as comonomer incorporation (C(NB)), monomer dispersity (MD), monomer reactivity ratio (r(e)), sequence length of ethylene (l(e)) and tetrad microblock distributions. The relation between the type of catalyst, reaction conditions and on the other hand, the copolymer microstructure, chain termination reaction analyzed by the type of unsaturation are discussed. In addition, the thermal properties of E-NB copolymers such as the melting and crystallization behavior, like also the heterogeneity of composition described by successive the self-nucleation and annealing (SSA) and the dispersity index (DI) were determined. |
format | Online Article Text |
id | pubmed-7690451 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-76904512020-11-27 Structural and Thermal Properties of Ethylene-Norbornene Copolymers Obtained Using Vanadium Homogeneous and SIL Catalysts Groch, Paweł Bihun-Kisiel, Anna Piontek, Aleksandra Ochędzan-Siodłak, Wioletta Polymers (Basel) Article The series of ethylene-norbornene (E-NB) copolymers was obtained using different vanadium homogeneous and supported ionic liquid (SIL) catalyst systems. The (13)C and (1)H NMR (carbon and proton nuclear magnetic resonance spectroscopy) together with differential scanning calorimetry (DSC) were applied to determine the composition of copolymers such as comonomer incorporation (C(NB)), monomer dispersity (MD), monomer reactivity ratio (r(e)), sequence length of ethylene (l(e)) and tetrad microblock distributions. The relation between the type of catalyst, reaction conditions and on the other hand, the copolymer microstructure, chain termination reaction analyzed by the type of unsaturation are discussed. In addition, the thermal properties of E-NB copolymers such as the melting and crystallization behavior, like also the heterogeneity of composition described by successive the self-nucleation and annealing (SSA) and the dispersity index (DI) were determined. MDPI 2020-10-22 /pmc/articles/PMC7690451/ /pubmed/33105638 http://dx.doi.org/10.3390/polym12112433 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Groch, Paweł Bihun-Kisiel, Anna Piontek, Aleksandra Ochędzan-Siodłak, Wioletta Structural and Thermal Properties of Ethylene-Norbornene Copolymers Obtained Using Vanadium Homogeneous and SIL Catalysts |
title | Structural and Thermal Properties of Ethylene-Norbornene Copolymers Obtained Using Vanadium Homogeneous and SIL Catalysts |
title_full | Structural and Thermal Properties of Ethylene-Norbornene Copolymers Obtained Using Vanadium Homogeneous and SIL Catalysts |
title_fullStr | Structural and Thermal Properties of Ethylene-Norbornene Copolymers Obtained Using Vanadium Homogeneous and SIL Catalysts |
title_full_unstemmed | Structural and Thermal Properties of Ethylene-Norbornene Copolymers Obtained Using Vanadium Homogeneous and SIL Catalysts |
title_short | Structural and Thermal Properties of Ethylene-Norbornene Copolymers Obtained Using Vanadium Homogeneous and SIL Catalysts |
title_sort | structural and thermal properties of ethylene-norbornene copolymers obtained using vanadium homogeneous and sil catalysts |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7690451/ https://www.ncbi.nlm.nih.gov/pubmed/33105638 http://dx.doi.org/10.3390/polym12112433 |
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