Počet záznamů: 1
Novel antifouling self-healing poly(carboxybetaine methacrylamide-co-HEMA) nanocomposite hydrogels with superior mechanical properties
- 1.
SYSNO ASEP 0397101 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Novel antifouling self-healing poly(carboxybetaine methacrylamide-co-HEMA) nanocomposite hydrogels with superior mechanical properties Tvůrce(i) Kostina, Nina Yu. (UMCH-V)
Sharifi, S. (NL)
de los Santos Pereira, Andres (UMCH-V) RID, ORCID
Michálek, Jiří (UMCH-V) RID, ORCID
Grijpma, D. W. (NL)
Rodriguez-Emmenegger, Cesar (UMCH-V) RIDZdroj.dok. Journal of Materials Chemistry B - ISSN 2050-750X
Roč. 1, č. 41 (2013), s. 5644-5650Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova hydrogels ; self-healing ; antifouling Vědní obor RIV CD - Makromolekulární chemie CEP KAN200520804 GA AV ČR - Akademie věd GA13-00939S GA ČR - Grantová agentura ČR GAP205/12/1702 GA ČR - Grantová agentura ČR GAP106/12/1451 GA ČR - Grantová agentura ČR GBP205/12/G118 GA ČR - Grantová agentura ČR Institucionální podpora UMCH-V - RVO:61389013 UT WOS 000325762800014 DOI 10.1039/C3TB20704H Anotace Novel antifouling highly wettable hydrogels with superior mechanical and self-healing properties are presented. Hydrogels were prepared by UV-initiated copolymerisation of non-fouling zwitterionic carboxybetaine methacrylamide (CBMAA-3) and 2-hydroxyethyl methacrylate (HEMA) in the presence of uniformly dispersed clay nanoparticles (Laponite XLG) in water. The nanoparticles acted as physical cross-linkers resulting in excellent mechanical resistance. The effects of composition such as the amount of nanoclay and the HEMA/CBMAA-3 molar ratio on the physical properties of the nanocomposite hydrogels were investigated. These gels showed outstanding composition-dependent mechanical properties, exhibiting remarkably large elongations at break (≥1800%) and high strengths and moduli even at higher molar contents of CBMAA-3 and higher degrees of swelling (DS). Furthermore, these hydrogels were able to repair mechanical damage without the use of any healing agent by spontaneous reconstruction of cross-links across a damaged interface. Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2014
Počet záznamů: 1