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Substituted Poly(Vinylphosphonate) Coatings of Magnetite Nanoparticles and Clusters. MAGNETOCHEMISTRY 2022. [DOI: 10.3390/magnetochemistry8080079] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Magnetite nanoparticles and clusters of nanoparticles have been of Increasing scientific interest in the past decades. In order to prepare nanoparticles and clusters that are stable in suspension, different coatings have been used. Phosphates and phosphonates are a preferred anchoring group for the coating of magnetite nanomaterials. However, poly(vinylphosphonates) have rarely been used as a coating agent for any nanoparticles. Here, poly(methylvinylphosphonate) and other substituted polyvinylphosphonates are described as new coatings for magnetite nanoparticles and clusters. They show great stability in aqueous suspension. This is also the first time phosphonate-coated magnetite clusters have been synthesized in a one-pot polyol reaction. The coated magnetite nanoparticles and clusters have been characterized by TEM, EDX, FTIR, magnetization measurement, XRD as well as XPS. It has been shown that substituted vinylphosphonates can be easily synthesized in one-step procedures and as a polymeric coating can imbue important properties such as stability in suspension, tight binding to the particle surface, the ability to be further functionalized or to tightly adsorb metal ions. For the synthesis of magnetite clusters the cluster formation, polymerization and coating are done in a one-pot reaction and the resulting magnetite clusters show a higher amount of phosphonate coating than with a three-step procedure including a ligand exchange.
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Preparation of Responsive Zwitterionic Diblock Copolymers Containing Phosphate and Phosphonate Groups. Macromol Res 2020. [DOI: 10.1007/s13233-020-8148-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Janczewski Ł, Gajda A, Braszczyńska J, Gajda T. Microwave-assisted synthesis of dialkyl ω-azidoalkylphosphonates. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1221114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Łukasz Janczewski
- Institute of Organic Chemistry, Lodz University of Technology, Łódź, Poland
| | - Anna Gajda
- Institute of Organic Chemistry, Lodz University of Technology, Łódź, Poland
| | - Julia Braszczyńska
- Institute of Organic Chemistry, Lodz University of Technology, Łódź, Poland
| | - Tadeusz Gajda
- Institute of Organic Chemistry, Lodz University of Technology, Łódź, Poland
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Wentrup C. Sir John Cornforth Memorial Issue. Aust J Chem 2015. [DOI: 10.1071/ch15100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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