How Depolymerization-Based Plasticization Affects the Process of Cold Crystallization in Poly(P-Dioxanone)
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
How Depolymerization-Based Plasticization Affects the Process of Cold Crystallization in Poly(P-Dioxanone)
Original language description
The self-plasticization, i.e., the increase in the polymer chains' mobility by including its monomer, has a major impact on a polymer'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 ->alpha' 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 ->alpha' polymorphic transition and rigid amorphous phase are observed. Crystallization data are discussed in terms of the variable activation energy concept. image
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Macromolecular Rapid Communications
ISSN
1022-1336
e-ISSN
1521-3927
Volume of the periodical
45
Issue of the periodical within the volume
20
Country of publishing house
DE - GERMANY
Number of pages
18
Pages from-to
202400369
UT code for WoS article
001259965000001
EID of the result in the Scopus database
2-s2.0-85197611611