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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Result continuities

  • Project

  • 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

  • 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