Two types of water-soluble complexes of chlorophyll a with organic polymers have been investigated: chlorophyll a coordinately bonded to poly 4-vinylpyridine and a chlorophyll derivative, Mg-chlorin e_6 phytyl methyl ester, covalently bonded to GANTREZ AN (poly (methyl vinyl ether/maleic anhydride) ). The first complex was observed upon dissolving chlorophyll a and poly 4-vinylpyridine in aqueous ethanol solutions. The Mg-chlorin e_6 diester-GANTREZ AN complex (chlorophyll a/polymer) was made by aminolysing the chlorophyll ring V with 1, 6-hexanediamine to give an intermediate product, Mg-chlorin e_6 -6-N-(6' -aminohexyl) carboxamide, phytyl methyl ester. This was attached to GANTREZ AN by linkage of the 6'-amine to a polymer anhydride unit. The remaining anhydride units were treated with ammonium hydroxide to give the half amide salt, poly (methyl vinyl ether/maleamic acid, ammonium salt). The chlorophyll a/polymer has major absorption maxima at 641 nm and 415 nm.
College and Department
Chemistry and Biochemistry
BYU ScholarsArchive Citation
Jensen, Richard Grant, "Properties of chlorophyll derivatives bonded to polymers" (1965). Theses and Dissertations. 8244.