MIPs logo MIPdatabase      MIP2024 Conference banner, website is now open, register on site for important updates   
Custom Search
Reference type: Journal
Authors: Gryshchenko AO, Bottaro CS
Article Title: Development of Molecularly Imprinted Polymer in Porous Film Format for Binding of Phenol and Alkylphenols from Water.
Publication date: 2014
Journal: International Journal of Molecular Sciences
Volume: 15
Issue: (1)
Page numbers: 1338-1357.
DOI: 10.3390/ijms15011338
Alternative URL: http://www.mdpi.com/1422-0067/15/1/1338

Abstract: Molecularly imprinted polymers (MIPs) were fabricated on glass slides with a "sandwich" technique giving ~20 μm thick films. Methanol/water as a solvent, and polyethyleneglycol and polyvinylacetate as solvent modifiers, were used to give a porous morphology, which was studied with scanning electron microscopy and gravimetric analysis. Various MIPs were synthesized through non-covalent imprinting with phenol as the template; itaconic acid, 4-vinylpyridine, and styrene as monomers; ethylene glycol dimethacrylate, triethylene glycol dimethacrylate, and pentaerythritol triacrylate (PETA) as cross-linkers. Binding and imprinting properties of the MIPs were evaluated based on phenol adsorption isotherms. Since phenol has only one weakly acidic hydroxyl group and lacks unique structural characteristics necessary for binding specificity, the preparation of selective MIPs was challenging. The recognition of phenol via hydrogen bonding is suppressed in water, while hydrophobic interactions, though promoted, are not specific enough for highly-selective phenol recognition. Nevertheless, the styrene-PETA MIP gave modest imprinting effects, which were higher at lower concentrations (Imprinting Factor (IF) = 1.16 at 0.5 mg L-1). The isotherm was of a Freundlich type over 0.1-40 mg L-1 and there was broad cross-reactivity towards other structurally similar phenols. This shows that phenol MIPs or simple adsorbents can be developed based on styrene for hydrophobic binding, and PETA to form a tighter, hydrophilic network.
Template and target information: phenol
Author keywords: thin film fabrication, "sandwich" technique, MIP porosity, Monomer-template interactions, hydrophobic interactions, styrene, pentaerythritol triacrylate (PETA), methanol, water, phenol adsorption isotherms, Imprinting effect


  I love MISPE shirt  Mug featuring the name Christina spelled out in the single letter amino acid code  British periodic table patriotic tote bag






 

Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.


Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:



Mickey Mouse 90th Anniversary banner