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Rheological properties of homogeneous and heterogeneous poly(2-hydroxyethyl methacrylate) hydrogels
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SYSNO ASEP 0374874 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Rheological properties of homogeneous and heterogeneous poly(2-hydroxyethyl methacrylate) hydrogels Author(s) Karpushkin, Evgeny (UMCH-V)
Dušková-Smrčková, Miroslava (UMCH-V) RID
Remmler, T. (DE)
Lapčíková, Monika (UMCH-V) RID
Dušek, Karel (UMCH-V) RID, ORCIDSource Title Polymer International. - : Wiley - ISSN 0959-8103
Roč. 61, č. 2 (2012), s. 328-336Number of pages 9 s. Language eng - English Country GB - United Kingdom Keywords hydrogel ; 2-hydroxyethyl methacrylate ; phase separation Subject RIV CD - Macromolecular Chemistry R&D Projects KAN200520804 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000298840000025 DOI 10.1002/pi.3194 Annotation The swelling and rheological behaviour of hydrogels of morphology varying from non-porous to highly porous was investigated. The hydrogels were prepared by redox free radical copolymerization of 2-hydroxyethyl methacrylate with 0.1 to 5 mol% of di(ethylene glycol) dimethacrylate in the presence of water varying from 40 to 80 wt%. Various compositions led to clear, turbid or macroporous gels. The morphology of the gels was characterized using optical microscopy and cryoscan electron microscopy. The oscillatory shear and creep of swollen gels revealed that there was a pronounced difference between homogeneous or microheterogeneous and macroporous gels with communicating pores. The achievement of optimum conditions for the correct determination of shear modulus was also analysed. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2012
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