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Production of molecularly imprinted polymer particles with amide-decorated cavities for CO2 capture using membrane emulsification/suspension polymerisation

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journal contribution
posted on 08.07.2016, 09:03 authored by Ali Nabavi, Goran VladisavljevicGoran Vladisavljevic, Agni Wicaksono, Stella GeorgiadouStella Georgiadou, Vasilije Manovic
Highly uniform amide-based molecularly imprinted polymer (MIP) particles containing CO2-philic cavities decorated with amide groups were produced using membrane emulsification and subsequent suspension polymerisation. The organic phase containing acrylamide (functional monomer), oxalic acid (dummy template), ethylene glycol dimethacrylate (crosslinker) and azobisisobutyronitrile (initiator) dissolved in a 50/50 mixture (by volume) of acetonitrile and toluene (porogenic solvents) was injected through a microengineered nickel membrane with a pore diameter of 20μm and a pore spacing of 200μm into agitated 0.5wt% aqueous solution of poly(vinyl alcohol) to form droplets that have been polymerised at 60°C for 3h. The volume median diameter of the droplets was controlled between 35 and 158μm by shear stress at the membrane surface. The droplets maintained their physical stability during storage for 4 weeks and their size was independent of the dispersed phase content. The particle size after polymerisation was consistent with the initial droplet size. The particles were stable up to 210°C and had a specific surface area of 239m2/g and a CO2 capture capacity of 0.59mmol/g at 273K and 0.15bar CO2 partial pressure.

Funding

The authors gratefully acknowledge the financial support for this work by coERCe granted by Innovate UK, project Grant: 102213, and Cambridge Engineering and Analysis Design (CEAD) Ltd.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Citation

NABAVI, S. ... et al, 2016. Production of molecularly imprinted polymer particles with amide-decorated cavities for CO2 capture using membrane emulsification/suspension polymerisation. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 521, pp. 231-238.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2016-05-14

Notes

This paper was accepted for publication in the journal Colloids and Surfaces A: Physicochemical and Engineering Aspects and the definitive published version is available at http://dx.doi.org/10.1016/j.colsurfa.2016.05.033

ISSN

0927-7757

eISSN

1873-4359

Language

en