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Role of Water as a Coporogen in the Synthesis of Mesoporous Poly(divinylbenzenes)

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, SAI}
Source Title	Journal of Applied Polymer Science. - : Wiley - ISSN 0021-8995 Roč. 131, č. 23 (2014), s. 41198
Number 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	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

Number of the records: 1