Crystal Nucleation and Growth in Cross-Linked Poly(ε-caprolactone) (PCL)

The crystal nucleation and overall crystallization kinetics of cross-linked poly(ε-caprolactone) was studied experimentally by fast scanning calorimetry in a wide temperature range. With an increasing degree of cross-linking, both the nucleation and crystallization half-times increase. Concurrently,...

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Autores principales:	Timur Mukhametzyanov, Jürn W.P. Schmelzer, Egor Yarko, Albert Abdullin, Marat Ziganshin, Igor Sedov, Christoph Schick
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	crystallization nucleation cross-links fast scanning calorimetry (FSC) classical nucleation theory (CNT) Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/c982d6627efd452081acba3b6a669458
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spelling	oai:doaj.org-article:c982d6627efd452081acba3b6a6694582021-11-11T18:41:32ZCrystal Nucleation and Growth in Cross-Linked Poly(ε-caprolactone) (PCL)10.3390/polym132136172073-4360https://doaj.org/article/c982d6627efd452081acba3b6a6694582021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3617https://doaj.org/toc/2073-4360The crystal nucleation and overall crystallization kinetics of cross-linked poly(ε-caprolactone) was studied experimentally by fast scanning calorimetry in a wide temperature range. With an increasing degree of cross-linking, both the nucleation and crystallization half-times increase. Concurrently, the glass transition range shifts to higher temperatures. In contrast, the temperatures of the maximum nucleation and the overall crystallization rates remain the same, independent of the degree of cross-linking. The cold crystallization peak temperature generally increases as a function of heating rate, reaching an asymptotic value near the temperature of the maximum growth rate. A theoretical interpretation of these results is given in terms of classical nucleation theory. In addition, it is shown that the average distance between the nearest cross-links is smaller than the estimated lamellae thickness, which indicates the inclusion of cross-links in the crystalline phase of the polymer.Timur MukhametzyanovJürn W.P. SchmelzerEgor YarkoAlbert AbdullinMarat ZiganshinIgor SedovChristoph SchickMDPI AGarticlecrystallizationnucleationcross-linksfast scanning calorimetry (FSC)classical nucleation theory (CNT)Organic chemistryQD241-441ENPolymers, Vol 13, Iss 3617, p 3617 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	crystallization nucleation cross-links fast scanning calorimetry (FSC) classical nucleation theory (CNT) Organic chemistry QD241-441
spellingShingle	crystallization nucleation cross-links fast scanning calorimetry (FSC) classical nucleation theory (CNT) Organic chemistry QD241-441 Timur Mukhametzyanov Jürn W.P. Schmelzer Egor Yarko Albert Abdullin Marat Ziganshin Igor Sedov Christoph Schick Crystal Nucleation and Growth in Cross-Linked Poly(ε-caprolactone) (PCL)
description	The crystal nucleation and overall crystallization kinetics of cross-linked poly(ε-caprolactone) was studied experimentally by fast scanning calorimetry in a wide temperature range. With an increasing degree of cross-linking, both the nucleation and crystallization half-times increase. Concurrently, the glass transition range shifts to higher temperatures. In contrast, the temperatures of the maximum nucleation and the overall crystallization rates remain the same, independent of the degree of cross-linking. The cold crystallization peak temperature generally increases as a function of heating rate, reaching an asymptotic value near the temperature of the maximum growth rate. A theoretical interpretation of these results is given in terms of classical nucleation theory. In addition, it is shown that the average distance between the nearest cross-links is smaller than the estimated lamellae thickness, which indicates the inclusion of cross-links in the crystalline phase of the polymer.
format	article
author	Timur Mukhametzyanov Jürn W.P. Schmelzer Egor Yarko Albert Abdullin Marat Ziganshin Igor Sedov Christoph Schick
author_facet	Timur Mukhametzyanov Jürn W.P. Schmelzer Egor Yarko Albert Abdullin Marat Ziganshin Igor Sedov Christoph Schick
author_sort	Timur Mukhametzyanov
title	Crystal Nucleation and Growth in Cross-Linked Poly(ε-caprolactone) (PCL)
title_short	Crystal Nucleation and Growth in Cross-Linked Poly(ε-caprolactone) (PCL)
title_full	Crystal Nucleation and Growth in Cross-Linked Poly(ε-caprolactone) (PCL)
title_fullStr	Crystal Nucleation and Growth in Cross-Linked Poly(ε-caprolactone) (PCL)
title_full_unstemmed	Crystal Nucleation and Growth in Cross-Linked Poly(ε-caprolactone) (PCL)
title_sort	crystal nucleation and growth in cross-linked poly(ε-caprolactone) (pcl)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c982d6627efd452081acba3b6a669458
work_keys_str_mv	AT timurmukhametzyanov crystalnucleationandgrowthincrosslinkedpolyecaprolactonepcl AT jurnwpschmelzer crystalnucleationandgrowthincrosslinkedpolyecaprolactonepcl AT egoryarko crystalnucleationandgrowthincrosslinkedpolyecaprolactonepcl AT albertabdullin crystalnucleationandgrowthincrosslinkedpolyecaprolactonepcl AT maratziganshin crystalnucleationandgrowthincrosslinkedpolyecaprolactonepcl AT igorsedov crystalnucleationandgrowthincrosslinkedpolyecaprolactonepcl AT christophschick crystalnucleationandgrowthincrosslinkedpolyecaprolactonepcl
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Crystal Nucleation and Growth in Cross-Linked Poly(ε-caprolactone) (PCL)

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