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Monolithic stationary phases with a longitudinal gradient of porosity

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39911216" target="_blank" >RIV/00216275:25310/17:39911216 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1002/jssc.201700048" target="_blank" >http://dx.doi.org/10.1002/jssc.201700048</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/jssc.201700048" target="_blank" >10.1002/jssc.201700048</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Monolithic stationary phases with a longitudinal gradient of porosity

  • Original language description

    The duration of the hypercrosslinking reaction has been used to control the extent of small pores formation in polymer-based monolithic stationary phases. Segments of five columns hypercrosslinked for 30-360 min were coupled via zero-volume unions to prepare columns with segmented porosity gradients. The steepness of the porosity gradient affected column efficiency, mass transfer resistance, and separation of both small-molecule alkylbenzenes and high-molar-mass polystyrene standards. In addition, the segmented column with the steepest porosity gradient was prepared as a single column with a continuous porosity gradient. The steepness of porosity gradient in this type column was tuned. Compared to a completely hypercrosslinked column, the column with the shallower gradient produced comparable size-exclusion separation of polystyrene standards but allowed higher column permeability. The completely hypercrosslinked column and the column with porosity gradient were successfully coupled in online two-dimensional liquid chromatography of polymers.

  • 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

    10404 - Polymer science

Result continuities

  • Project

    <a href="/en/project/GA14-22426S" target="_blank" >GA14-22426S: Development of an multifunctional monolithic capillary column with integrated sample focusing, separation, and on-column electrochemical detection</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Journal of Separation Science

  • ISSN

    1615-9306

  • e-ISSN

  • Volume of the periodical

    40

  • Issue of the periodical within the volume

    8

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    7

  • Pages from-to

    1703-1709

  • UT code for WoS article

    000399783300009

  • EID of the result in the Scopus database