期刊
POLYMER
卷 53, 期 1, 页码 113-120出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2011.11.021
关键词
Magnetite; Azlactone; ATRP
资金
- Thailand Research Fund (TRF)
- Naresuan University [DBG5380001]
- Ministry of Foreign Affairs, Ministry of Higher Education and Research of France
- Commission on Higher Education of Thailand
- PHC [20609UF]
- Royal Golden Jubilee [PHD/0207/2551]
- Center of Excellence for Innovation in Chemistry (PERCH-CIC), Commission on Higher Education, Ministry of Education
Surface modification of magnetite nanoparticle (MNP) with poly(poly(ethylene glycol) methyl ether methacrylate-stat-2-vinyl-4,4-dimethylazIactone) copolymers (Poly(PEGMA-stat-VDM)) via atom transfer radical polymerization (ATRP) and its application to anchor thymine peptide nucleic acid (PNA) monomer are reported. ATRP of PEGMA and VDM was first performed in a solution system to optimize the reaction condition and the optimal condition was then applied in the surface-initiated ATRP of MNR Fourier transform infrared spectroscopy (FTIR) indicated the presence of the copolymer in the MNP complexes. After immobilization of thymine PNA monomer, thermogravimetric analysis (TGA) results indicated that there were 4 wt% of the PNA monomer in the complex (1.2 mu mol/g complex). The existence of the PNA monomer in the complex was also confirmed via FTIR and vibrating sample magnetometry (VSM). The MNP complex with active surface might be efficiently used as magnetically guidable nanosolid support for PNA oligomers and other molecules containing affinity functional groups. (C) 2011 Elsevier Ltd. All rights reserved.
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