Phase mixing and separation in polyester polyurethane studied by small-angle scattering: A polydisperse hard sphere model analysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10385059" target="_blank" >RIV/00216208:11320/18:10385059 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.polymer.2018.05.069" target="_blank" >https://doi.org/10.1016/j.polymer.2018.05.069</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.polymer.2018.05.069" target="_blank" >10.1016/j.polymer.2018.05.069</a>
Alternative languages
Result language
angličtina
Original language name
Phase mixing and separation in polyester polyurethane studied by small-angle scattering: A polydisperse hard sphere model analysis
Original language description
Small-angle scattering was employed to characterize the gradual phase mixing and separation of Estane 5703p, a type of polyester polyurethane, as a function of temperature (20-110 degrees C) and time (minutes to 80 days). The polymer structure was modelled by polydisperse hard spheres, and microstructure evolution of the material was inferred from the development of the fitting parameters. At temperatures higher than 40 degrees C, the scattering data indicated the mixing of hard domains (MDI-BDO) with soft matrix (PBA). The hard domain distance showed a sharp increase at 50-60 degrees C. Between 60 and 90 degrees C, a newly-observed ordering signalled the formation of a distinct mesophase with a repeat distance of 5.15 nm. Upon heating, the morphology evolution in Estane follows: domain intermixing - mesophase formation - final melting. After cooling, the domain structure partly recovered, but did not reach the original state during storage at room temperature for 80 days.
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Polymer
ISSN
0032-3861
e-ISSN
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Volume of the periodical
147
Issue of the periodical within the volume
May
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
1-7
UT code for WoS article
000436484100001
EID of the result in the Scopus database
2-s2.0-85047781890