RESPONSIVE POLYMER HYBRID GEL CROSS-LINKED BY N,N-(1,2 DIHYDROXYETHYLENE) BISACRYLAMIDE FOR CATALYTIC APPLICATION

Iqbal, Zaffar; Shah, Luqman Ali; Sayed, Murtaza; Haleem, Abdul; Siddiq, Mohammad

dc.creator	Iqbal, Zaffar
dc.creator	Shah, Luqman Ali
dc.creator	Sayed, Murtaza
dc.creator	Haleem, Abdul
dc.creator	Siddiq, Mohammad
dc.date	2016-09-10
dc.date.accessioned	2019-11-13T15:11:22Z
dc.date.available	2019-11-13T15:11:22Z
dc.identifier	http://www.jcchems.com/index.php/JCCHEMS/article/view/79
dc.identifier.uri	https://revistaschilenas.uchile.cl/handle/2250/112514
dc.description	Copolymer microgel composed of N-isopropyl acrylamide and methacrylic acid, poly(NIPAM-MAA), was synthesized by free radical emulsion polymerization using N,N-(1,2-dihydroxyethylene) bisacrylamide as cross-linking agent. The hybrid microgels poly(NIPAM-MAA)-Au and poly(NIPAM-MAA)-Ag, were synthesized by in-situ reduction of metal ions using sodium borohydride (NaBH4) as reducing agent. The temperature and pH sensitivity of pure and hybrid microgels were studied by dynamic light scattering (DLS) and UV-Visible spectroscopy. The existence of gold and silver nanoparticles inside the microgel network was confirmed by transmission electron microscopy (TEM). Poly(NIPAM-MAA)-Au and poly(NIPAM-MAA)-Ag hybrid microgels were tested for the comparative catalytic activity towards the reduction of 4-nitrophenol to 4-aminophenol. The apparent rate constant (kapp) for poly(NIPAM-MAA)-Au was found superior than poly(NIPAM-MAA)-Ag.	en-US
dc.format	application/pdf
dc.language	eng
dc.publisher	Sociedad Chilena de Química	en-US
dc.relation	http://www.jcchems.com/index.php/JCCHEMS/article/view/79/65
dc.rights	Copyright (c) 2017 Zaffar Iqbal, Luqman Ali Shah, Murtaza Sayed, Abdul Haleem, Mohammad Siddiq	en-US
dc.rights	https://creativecommons.org/licenses/by-nc-sa/4.0	en-US
dc.source	Journal of the Chilean Chemical Society; Vol 61 No 3 (2016): Journal of the Chilean Chemical Society	en-US
dc.source	0717-9707
dc.source	0717-9324
dc.subject	Free radical emulsion polymerization	en-US
dc.subject	In-situ reduction method	en-US
dc.subject	Hybrid microgels	en-US
dc.subject	Surface plasmon resonance	en-US
dc.subject	Catalytic activity	en-US
dc.title	RESPONSIVE POLYMER HYBRID GEL CROSS-LINKED BY N,N-(1,2 DIHYDROXYETHYLENE) BISACRYLAMIDE FOR CATALYTIC APPLICATION	en-US
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion

This item appears in the following Collection(s)

Journal of the Chilean Chemical Society
[0-9]{4}

Show simple item record