Crystallization of Random Metallocene-Catalyzed Propylene-Based Copolymers with Ethylene and 1-Hexene on Rapid Cooling

Propylene-based random copolymers with either ethylene or 1-hexene as comonomer, produced using a metallocene catalyst, were studied regarding their crystallization behaviors, with a focus on rapid cooling. To get an impression of processing effects, fast scanning chip calorimetry (FSC) was used in...

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Autores principales: Mileva, Daniela, Wang, Jingbo, Androsch, René, Jariyavidyanont, Katalee, Gahleitner, Markus, Bernreitner, Klaus
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8272238/
https://www.ncbi.nlm.nih.gov/pubmed/34202038
http://dx.doi.org/10.3390/polym13132091
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author Mileva, Daniela
Wang, Jingbo
Androsch, René
Jariyavidyanont, Katalee
Gahleitner, Markus
Bernreitner, Klaus
author_facet Mileva, Daniela
Wang, Jingbo
Androsch, René
Jariyavidyanont, Katalee
Gahleitner, Markus
Bernreitner, Klaus
author_sort Mileva, Daniela
collection PubMed
description Propylene-based random copolymers with either ethylene or 1-hexene as comonomer, produced using a metallocene catalyst, were studied regarding their crystallization behaviors, with a focus on rapid cooling. To get an impression of processing effects, fast scanning chip calorimetry (FSC) was used in addition to the characterization of the mechanical performance. When comparing the comonomer type and the relation to commercial grades based on Ziegler–Natta-type catalysts, both an interaction with the catalyst-related regio-defects and a significant difference between ethylene and 1-hexene was observed. A soluble-type nucleating agent was found to modify the behavior, but to an increasingly lesser degree at high cooling rates.
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spelling pubmed-82722382021-07-11 Crystallization of Random Metallocene-Catalyzed Propylene-Based Copolymers with Ethylene and 1-Hexene on Rapid Cooling Mileva, Daniela Wang, Jingbo Androsch, René Jariyavidyanont, Katalee Gahleitner, Markus Bernreitner, Klaus Polymers (Basel) Article Propylene-based random copolymers with either ethylene or 1-hexene as comonomer, produced using a metallocene catalyst, were studied regarding their crystallization behaviors, with a focus on rapid cooling. To get an impression of processing effects, fast scanning chip calorimetry (FSC) was used in addition to the characterization of the mechanical performance. When comparing the comonomer type and the relation to commercial grades based on Ziegler–Natta-type catalysts, both an interaction with the catalyst-related regio-defects and a significant difference between ethylene and 1-hexene was observed. A soluble-type nucleating agent was found to modify the behavior, but to an increasingly lesser degree at high cooling rates. MDPI 2021-06-25 /pmc/articles/PMC8272238/ /pubmed/34202038 http://dx.doi.org/10.3390/polym13132091 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Mileva, Daniela
Wang, Jingbo
Androsch, René
Jariyavidyanont, Katalee
Gahleitner, Markus
Bernreitner, Klaus
Crystallization of Random Metallocene-Catalyzed Propylene-Based Copolymers with Ethylene and 1-Hexene on Rapid Cooling
title Crystallization of Random Metallocene-Catalyzed Propylene-Based Copolymers with Ethylene and 1-Hexene on Rapid Cooling
title_full Crystallization of Random Metallocene-Catalyzed Propylene-Based Copolymers with Ethylene and 1-Hexene on Rapid Cooling
title_fullStr Crystallization of Random Metallocene-Catalyzed Propylene-Based Copolymers with Ethylene and 1-Hexene on Rapid Cooling
title_full_unstemmed Crystallization of Random Metallocene-Catalyzed Propylene-Based Copolymers with Ethylene and 1-Hexene on Rapid Cooling
title_short Crystallization of Random Metallocene-Catalyzed Propylene-Based Copolymers with Ethylene and 1-Hexene on Rapid Cooling
title_sort crystallization of random metallocene-catalyzed propylene-based copolymers with ethylene and 1-hexene on rapid cooling
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8272238/
https://www.ncbi.nlm.nih.gov/pubmed/34202038
http://dx.doi.org/10.3390/polym13132091
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