Journal
ANALYTICA CHIMICA ACTA
Volume 680, Issue 1-2, Pages 65-71Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2010.09.017
Keywords
Molecularly imprinted polymer; RAFT polymerization; Click chemistry; Estrogenic disrupting chemicals
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Funding
- National Natural Science Foundation of China [21076051]
- Scientific Research Foundation of Harbin [2007RFXXS022]
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology [2010T506]
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In this paper, we demonstrated an efficient and robust route to the preparation of well-defined molecularly imprinted polymer based on reversible addition-fragmentation chain transfer (RAFT) polymerization and click chemistry. The alkyne terminated RAFT chain transfer agent was first synthesized. and then click reaction was used to graft RAFT agent onto the surface of silica particles which was modified by azide. Finally, imprinted thin film was prepared in the presence of 2,4-dichlorophenol as the template. The imprinted beads were demonstrated with a homogeneous polymer films (thickness of about 2.27 nm), and exhibited thermal stability under 255 degrees C. The as-synthesized product showed obvious molecular imprinting effects towards the template, fast template rebinding kinetics and an appreciable selectivity over structurally related compounds. (C) 2010 Elsevier B.V. All rights reserved.
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