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Surfactant free synthesis and characterization of poly(vinyl carbazole) microgel and its chemical modifications
Journal article   Peer reviewed

Surfactant free synthesis and characterization of poly(vinyl carbazole) microgel and its chemical modifications

Nurettin Sahiner and Sultan B. Sengel
Colloids and surfaces. A, Physicochemical and engineering aspects, Vol.514, pp.243-250
02-05-2017

Abstract

Chemistry Chemistry, Physical Science & Technology Physical Sciences
Here, for the first time poly( vinyl carbazole) (p(VC)) particles were prepared via surfactant free emulsion polymerization using 9-vinylcarbazole (VC) as functional monomer, ethylene glycol dimethacrylate (EGDMA) as cross-linker and ammonium persulfate (APS) as initiator. The prepared p(VC) particles were readily separated by decantation and centrifugation into micro- and nano-sized p(VC) particles, respectively. Almost monodispersed bimodal particles of p(VC) with particle diameters of about 1500 nm and 250 nm were measured with DLS measurements. The characterization of p(VC) microgel was done by optic microscope, SEM, FT-IR spectroscopy and TGA measurement. Micrometer-sized p(VC) particles were further used for chemical modification e.g., quaternization by using modifying agents such as 4-bromonitrile and 1,6-bromohexane on nitrogen atoms of p(VC), and by nitro addition to the benzene ring of p(VC). Additionally, UV absorption properties of the p(VC) microparticles were evaluated by using UV-vis Spectrometer. (C) 2016 Elsevier B.V. All rights reserved.
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