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Role of Water as a Coporogen in the Synthesis of Mesoporous Poly(divinylbenzenes)
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SYSNO ASEP 0437037 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Role of Water as a Coporogen in the Synthesis of Mesoporous Poly(divinylbenzenes) Author(s) Hanková, Libuše (UCHP-M) RID
Holub, Ladislav (UCHP-M) RID
Meng, X. (CN)
Xiao, F.-S. (CN)
Jeřábek, Karel (UCHP-M) RID, ORCID, SAISource Title Journal of Applied Polymer Science. - : Wiley - ISSN 0021-8995
Roč. 131, č. 23 (2014), s. 41198Number of pages 7 s. Language eng - English Country US - United States Keywords crosslinking ; morphology ; polystyrene Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects LH12194 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UCHP-M - RVO:67985858 UT WOS 000342920100059 DOI https://doi.org/10.1002/app.41198 Annotation The morphology of mesoporous poly(divinylbenzenes) prepared under so called hydrothermal conditions and with the monomers diluted in 10 times as much porogen solvent (tetrahydrofuran with 0–20% water) was studied in both dry and swollen states, with nitrogen adsorption/desorption and inverse steric exclusion chromatography, respectively. It was found that the pore volume in the polymer examined just after preparation corresponded to the volume of the porogen used. Such a high porosity can be explained only on the basis of pore formation through microsyneresis rather than the macrosyneresis mechanism that is common in the synthesis of conventional porous polymer materials. Naturally, drying induces a pore collapse and the addition of water to the porogen influences the ability of the polymer to regain the original pore volume by reswelling in tetrahydrofuran. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2015
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