Complexes of hybrid copolymers with heavy metals: preparation, properties and application as catalysts for oxidation

被引：0
作者：
Sevdalina Chr. Turmanova
Ivaylo V. Dimitrov
Emilya D. Ivanova
Krassimir G. Vassilev
机构：
[1] Assen Zlatarov University,Institute of Polymers
[2] Bulgarian Academy of Sciences,undefined
来源：
Polymer Bulletin | 2015年 / 72卷
关键词：
Hybrid copolymers; (PNIPAm-; -PEG)-; -PLLys; -Lysine; Metal complexes; Oxidation;
D O I：
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中图分类号：
学科分类号：
摘要：
Metal complexes of hybrid copolymers (HC) and amino acid lysine were prepared by complex formation with salts in aqueous (VOSO4·5H2O, Na2MoO4·2H2O, FeCl2·4H2O, CoCl2·6H2O, CuCl2·2H2O) and organic [VO(acac)2 and MoO2Cl2] solutions. The optimal conditions for the formation of complexes between the hybrid copolymers and heavy metal ions were established. The studies carried out by FT-IR spectroscopy and electron paramagnetic resonance proved the formation of metal complexes. The one of their possible applications as catalysts for the oxidation of cyclohexene with organic hydroperoxides was shown. Good results from epoxidation were obtained using metal complexes with VO2+ and MoO22+. The activities of the complexes obtained toward cyclohexene epoxidation can be arranged in order: HC-MoO22+ > HC-VO2+. It was found out that only cyclohexene oxide is selectively obtained in this reaction. The contents of cyclohexene oxide and 2-cyclohexene-1-ol reached 38.5 and 10.4 %, respectively. In the future, new approaches should be sought for the preparation of polymer carriers with suitable amphiphilic properties.
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页码：1301 / 1317
页数：16
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共 124 条
[1]  
Morell M(2013)Hybrid block copolymers constituted by peptides and synthetic polymers: an overview of synthetic approaches, supramolecular behavior and potential applications Polymers 5 188-224
[2]  
Puiggalí J(2013)Thermally sensitive polypeptide-based copolymer for DNA complexation into stable nanosized polyplexes J Nanopart Res 15 1358-2406
[3]  
Ivanova E(2011)Well-defined homopolypeptides, copolypeptides, and hybrids of poly( Biomacromolecules 12 2396-126
[4]  
Dimitrov I(2011)-proline) Macromol Rapid Commun 32 115-289
[5]  
Kozarova R(2011)Precision polymers-modern tools to understand and program macromolecular interactions Biomacromolecules 12 269-14
[6]  
Turmanova S(2010)Protein-based block copolymers J Polym Sci, Part A: Polym Chem 48 1-500
[7]  
Apostolova M(2013)Making “smart polymers” smarter: modern concepts to regulate functions in polymer science Biomaterials 34 492-82
[8]  
Gkikas M(2013)Gd-DTPA-loaded polymer–metal complex micelles with high relaxivity for MR cancer imaging J Mol Struct 258 77-2212
[9]  
Iatrou H(2006)Novel carbazole-based main chain polymeric metal complexes containing complexes of phenanthroline with Zn(II) or Cd(II): synthesis, characterization and photovoltaic application in DSSCs J Mol Catal A: Chem 9 2205-138
[10]  
Thomaidis S(2012)Metal-polymer complex catalysts on the base of polyethyleneimine for oxidation of sulfides E J Chem 17 131-394
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