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Reference type: Journal
Authors: Karnka R, Chaiyasat P, Chaiyasat A
Article Title: Synthesis of Uniform and Stable Molecularly Imprinted Polymer Particles by Precipitation Polymerization.
Publication date: 2017
Journal: Oriental Journal of Chemistry
Volume: 33
Issue: (5)
Page numbers: 2370-2376.
DOI: 10.13005/ojc/330529
Alternative URL: http://www.orientjchem.org/vol33no5/synthesis-of-uniform-and-stable-molecularly-imprinted-polymer-particles-by-precipitation-polymerization/

Abstract: In this work, precipitation polymerization was used to prepare uniform and stable molecular imprinting polymers (MIPs) particles without post treatment. Melamine was used as a template molecule model, while methacrylic acid, divinyl benzene (DVB) or ethylene glycol dimethacrylate (EGDMA) and acetonitrile were used as functional monomer, cross-linker and continuous phase, respectively. The polymerization was carried out in a vacuum condition at 70 C using benzoyl peroxide as an initiator. The obtained MIP particles demonstrated spherical shape with narrow particle size distribution. The particle size varied from micrometer-sized to sub-micrometer-sized depending on the initiator content. After purification, MIP particles represented high colloidal stability in aqueous medium.The binding efficiency of MIP using both cross-linkers (DVB and EGDMA) with melamine was approximately 20 mg/g MIP. The miscibility of all components where the functional monomer effectively pre-bound with the template molecules was the main factor for obtaining MIP particle with high binding efficiency.
Template and target information: melamine
Author keywords: Uniform MIP Particle, Melamine, precipitation polymerization, Homogeneous Nucleation


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