Long lived anion-selective sensors based on a covalently attached metalloporphyrin as anion receptor
AssigneeAuburn University
InventorsEric Bakker, Yu Qin
Life of this patent
Estimating the term…
Abstract
A graft copolymer having metalloporphyrin ionophores covalently attached in a manner that prevents dimer formation is provided. A method of making the graft copolymer comprises polymerizing a functionalized metalloporphyrin monomer, which includes a polymerizable group, with a co-monomer. Methods for synthesizing the polymerizable metalloporphyrin monomers are provided. The graft copolymer can be incorporated into anion-selective membranes for use in anion-detecting sensors, which have improved longevity and response times.
Claims17
A graft copolymer having selectivity for a target anion, the graft copolymer comprising co-polymerized units of:
- a. a functionalized ionophore monomer comprising a metalloporphyrin, a polymerizable group;
- and a spacer joining the metalloporphyrin and the polymerizable group;
- and
- b. a co-monomer, which co-polymerizes with the functionalized ionophore monomer, wherein at least a portion of the functionalized ionophore is covalently attached to the copolymer in a manner preventing formation of metalloporphyrin dimers.
A graft copolymer having selectivity for chloride ions, the graft copolymer comprising co-polymerized units of:
- a. a functionalized ionophore monomer comprising an indium porphyrin, a polymerizable group and a spacer joining the indium porphyrin and the polymerizable group;
- and
- b. a methacrylate co-monomer, which co-polymerizes with the functionalized ionophore monomer, wherein at least a portion of the functionalized ionophore is covalently attached to the copolymer in a manner preventing formation of matalloporphyrin dimers.
A graft copolymer having selectivity for a target anion, the graft copolymer comprising co-polymerized units of:
- a. a functionalized ionophore monomer comprising a metalloporphyrin, a polymerizable group and a spacer joining the metalloporphyrin and the polymerizable group, wherein the functionalized ionophore monomer is chloro(3-[18-(3 -acryloyloxypropyl)-7,12-bis(1-methoxyethyl)-3,8,13,17-tetramethylporphyrin-2-yl]-propyl ester) indium (III);
- and
- b. a co-monomer, which co-polymerizes with the functionalized ionophore monomer, wherein at least a portion of the functionalized ionophore is covalently attached to the copolymer in a manner preventing formation of metalloporphyrin dimers.
A graft copolymer having selectivity for a target anion, the graft copolymer comprising co-polymerized units of:
- a. a functionalized ionophore monomer comprising a metalloporphyrin, a polymerizable group and a spacer joining the metalloporphyrin and the polymerizable group, wherein the functionalized ionophore monomer is chloro(5-(4-acryloyloxyphenyl)-10,15,20-triphenylporphyrinato) indium (III);
- and
- b. a co-monomer, which co-polymerizes with the functionalized ionophore monomer, wherein at least a portion of the functionalized ionophore is covalently attached to the copolymer in a manner preventing formation of metalloporphyrin dimers.
Dependencies are inferred from the claim text.