How Depolymerization-Based Plasticization Affects the Process of Cold Crystallization in Poly(P-Dioxanone)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39922012" target="_blank" >RIV/00216275:25310/24:39922012 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1002/marc.202400369" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/marc.202400369</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/marc.202400369" target="_blank" >10.1002/marc.202400369</a>

Jazyk výsledku

angličtina

Název v původním jazyce

How Depolymerization-Based Plasticization Affects the Process of Cold Crystallization in Poly(P-Dioxanone)

Popis výsledku v původním jazyce

The self-plasticization, i.e., the increase in the polymer chains&apos; mobility by including its monomer, has a major impact on a polymer&apos;s structural, thermal, and mechanical properties. In this study, differential scanning calorimetry (DSC), optical and Raman microscopies, thermo-mechanical analysis (TMA), size exclusion chromatography equipped with a multi-angle light scattering detector (SEC-MALS), and X-ray diffraction analysis (XRD) are used to investigate the effect of thermally induced self-plasticization of poly-(p-dioxanone), PDX, on the crystal growths from the amorphous and molten states. Significant changes in the crystallization behavior and mechanical properties of PDX are found only for samples self-plasticized at the depolymerization temperature (Td) above 150 degrees C. The intense self-plasticization leads to the decrease of the crystallization temperature, increase of the crystal growth rapidity, disappearance of the distinct alpha -&gt;alpha&apos; polymorphic transition, reduction of the overall melting temperature, and segregation of the redundant monomer. Although the morphology of the crystalline phase has a major impact on the mechanical properties of PDX, the self-plasticization itself does not seem to result in any major changes in the magnitude, localization, or morphology of formed crystallites (these are primarily driven by the temperature of crystal growth). The manifestation of the variable activation energy concept is discussed for the present crystallization data. In this study, the influence of thermally induced self-plasticization on the crystallization of polydioxanone (PDX) is studied by differential scanning calorimetry (DSC). The self-plasticization in PDX decreases crystallization temperature and increases the crystal growth rapidity. The phenomena of alpha -&gt;alpha&apos; polymorphic transition and rigid amorphous phase are observed. Crystallization data are discussed in terms of the variable activation energy concept. image

Název v anglickém jazyce

How Depolymerization-Based Plasticization Affects the Process of Cold Crystallization in Poly(P-Dioxanone)

Popis výsledku anglicky

The self-plasticization, i.e., the increase in the polymer chains&apos; mobility by including its monomer, has a major impact on a polymer&apos;s structural, thermal, and mechanical properties. In this study, differential scanning calorimetry (DSC), optical and Raman microscopies, thermo-mechanical analysis (TMA), size exclusion chromatography equipped with a multi-angle light scattering detector (SEC-MALS), and X-ray diffraction analysis (XRD) are used to investigate the effect of thermally induced self-plasticization of poly-(p-dioxanone), PDX, on the crystal growths from the amorphous and molten states. Significant changes in the crystallization behavior and mechanical properties of PDX are found only for samples self-plasticized at the depolymerization temperature (Td) above 150 degrees C. The intense self-plasticization leads to the decrease of the crystallization temperature, increase of the crystal growth rapidity, disappearance of the distinct alpha -&gt;alpha&apos; polymorphic transition, reduction of the overall melting temperature, and segregation of the redundant monomer. Although the morphology of the crystalline phase has a major impact on the mechanical properties of PDX, the self-plasticization itself does not seem to result in any major changes in the magnitude, localization, or morphology of formed crystallites (these are primarily driven by the temperature of crystal growth). The manifestation of the variable activation energy concept is discussed for the present crystallization data. In this study, the influence of thermally induced self-plasticization on the crystallization of polydioxanone (PDX) is studied by differential scanning calorimetry (DSC). The self-plasticization in PDX decreases crystallization temperature and increases the crystal growth rapidity. The phenomena of alpha -&gt;alpha&apos; polymorphic transition and rigid amorphous phase are observed. Crystallization data are discussed in terms of the variable activation energy concept. image

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10400 - Chemical sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Macromolecular Rapid Communications

ISSN

1022-1336

e-ISSN

1521-3927

Svazek periodika

45

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

18

Strana od-do

202400369

Kód UT WoS článku

001259965000001

EID výsledku v databázi Scopus

2-s2.0-85197611611