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2012 | 1 | 3-16

Article title

Narrowly Dispersed Molecularly Imprinted Polymer Microspheres with Photo- and Thermo-Responsive Template Binding Properties in Pure Aqueous Media by RAFT Polymerization

Content

Title variants

Languages of publication

EN

Abstracts

EN
The facile and controlled synthesis of narrowly dispersed molecularly imprinted polymer (MIP) microspheres with both photo- and thermo-responsive template binding properties in pure aqueous media is described. Narrowly dispersed "living" core polymer microspheres with surface-immobilized dithioester groups were firstly prepared via reversible addition-fragmentation chain transfer (RAFT) precipitation polymerization (RAFTPP). The polymer microspheres were then successively grafted with an azobenzene (azo)-containing MIP layer and thermo-responsive poly(N-isopropylacrylamide) (PNIPAAm) brushes via surface-initiated RAFT polymerization to provide the desired product. The successful grafting of the azo-containing MIP layer and PNIPAAm brushes was confirmed by Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and static contact angle experiments. The attachment of an azo-containing MIP layer onto the "living" core polymer beads with a narrow size distribution allows the direct generation of narrowly dispersed photoresponsive core-shell MIP microspheres. Moreover, the introduction of PNIPAAm brushes onto the core-shell MIP microspheres has been shown to significantly improve their surface hydrophilicity leading to pure water-compatibility. Additionally, this modification confers thermo-responsive template binding properties upon the microspheres.

Publisher

Year

Volume

1

Pages

3-16

Physical description

Dates

published
1 - 1 - 2012
accepted
13 - 6 - 2012
received
19 - 4 - 2012
online
2 - 7 - 2012

Contributors

author
  • Key Laboratory of Functional Polymer Materials (Nankai University), Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
author
  • Key Laboratory of Functional Polymer Materials (Nankai University), Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
author
  • Key Laboratory of Functional Polymer Materials (Nankai University), Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
author
  • Key Laboratory of Functional Polymer Materials (Nankai University), Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
author
  • Key Laboratory of Functional Polymer Materials (Nankai University), Ministry of Education, Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_molim-2012-0002
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