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
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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
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
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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
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