兰州大学机构库 >化学化工学院
Synthesis and photophysical behaviors of temperature/pH-sensitive polymeric materials. I. Vinyl monomer bearing 9-aminoacridine and polymers
Guan, XL; Liu, XY(刘兴妤); Su, ZX(苏致兴); Su, ZX (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, Inst Polymer Sci Engn, Lanzhou 730000, Peoples R China.
2007-07
发表期刊EUROPEAN POLYMER JOURNAL
ISSN0014-3057
卷号43期号:7
出版者ELSEVIER
摘要A novel acrylic monomer bearing acriclinyl group, acridine-9-N-acrylamide (Ac-9AA) was synthesized from 9-aminoacridine (9AA) and acryloyl chloride in the presence of triethylamine in dry dichloromethane (CCl2) at room temperature. The synthesized Ac-9AA was identified by IR, MS and H-1 NMR spectra. Homopolymer of Ac-9AA was obtained using AIBN as a thermal initiator in THF under 65-70 degrees C and the average molecular weights (M-w) of poly(Ac-9AA) obtained was very low, being in the order of ca. 10(3). Copolymer of Ac-9AA and acrylamide was synthesized with thermal initiator and poly(Ac-9AA-co-AM) was characterized by the method of IR, UV-vis and DSC. The photophysical behaviors of Ac-9AA and its polymers were explored by recording the fluorescence spectra in solution, solid and film. In addition, the pH and temperature dependence on fluorescence of the water-soluble poly(Ac-9AA-co-AM) were investigated in detail. The results showed that the relative fluorescence intensity of poly(Ac-9AA-co-AM) had an excellent linear response to temperature in the range of 0-60 degrees C. Moreover, the fluorescence intensity increased continuously from low pH to high pH while the excitation maxima at 388 nm and emission maxima at 400 nm had redshift after the addition of HCl or NaOH, which results from the fact that the predominance of tautomeric forms of Ac-9AA changed at different medium. This investigation may provide a convenient way to prepared multifunctional macromolecule biomaterial bearing aminoacridine to probe pH and temperature in biological system. (c) 2007 Elsevier Ltd. All rights reserved.
出版地OXFORD
关键词acridine-9-N-acrylamide poly(acridine-9-N-acrylamide) poly(acridine-9-N-acrylamide-co-acrylamide) fluorescence temperature/pH-sensitive
学科领域Polymer Science
作者部门Lanzhou Univ, Coll Chem & Chem Engn, Inst Polymer Sci Engn, Lanzhou 730000, Peoples R China
DOI10.1016/j.eurpolymj.2006.12.014
文章类型Article
收录类别SCIE ; EI
语种英语
WOS记录号WOS:000248641400034
EI记录号20072710694917
第一机构
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文献类型期刊论文
条目标识符http://ir.lzu.edu.cn/handle/262010/78410
Collection化学化工学院
通讯作者Su, ZX (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, Inst Polymer Sci Engn, Lanzhou 730000, Peoples R China.
Recommended Citation:
GB/T 7714
Guan, XL,Liu, XY,Su, ZX,et al. Synthesis and photophysical behaviors of temperature/pH-sensitive polymeric materials. I. Vinyl monomer bearing 9-aminoacridine and polymers[J]. EUROPEAN POLYMER JOURNAL,2007,43(7).
APA Guan, XL,Liu, XY,Su, ZX,&Su, ZX .(2007).Synthesis and photophysical behaviors of temperature/pH-sensitive polymeric materials. I. Vinyl monomer bearing 9-aminoacridine and polymers.EUROPEAN POLYMER JOURNAL,43(7).
MLA Guan, XL,et al."Synthesis and photophysical behaviors of temperature/pH-sensitive polymeric materials. I. Vinyl monomer bearing 9-aminoacridine and polymers".EUROPEAN POLYMER JOURNAL 43.7(2007).
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