1. Metallopolymers: Preparation of Polymer Films with a High Content of Metal Centers via Photopolymerization of Metal-Containing Liquid-Crystalline Monomers
- Author
-
Grietje N. Mol, Jean-Claude Marchon, Pascale Maldivi, Laurence Marcot, Dirk J. Broer, Mohammed Ibn-Elhaj, and Daniel Guillon
- Subjects
Acrylate polymer ,Materials science ,General Chemical Engineering ,chemistry.chemical_element ,Mesophase ,General Chemistry ,Zinc ,Copper ,chemistry.chemical_compound ,Monomer ,Photopolymer ,chemistry ,Polymerization ,Polymer chemistry ,Materials Chemistry ,Carboxylate - Abstract
The photoinitiated polymerization of several metal-containing liquid crystals is described. Four metal carboxylates bearing terminal acrylate functions were investigated as monomeric units: a copper(II) complex derived from an aliphatic carboxylate, of formula Cu2(O2C−(CH2)11−Acr)4, (Acr = −OCO−CHCH2), a zinc(II) complex with the 3,4-bis(11-acryloyloxyundecanoxy)benzoate ligand, of formula Zn(O2CC6H3(O−(CH2)11−Acr)2)2 and two magnesium(II) carboxylates, one derived from an aliphatic carboxylate, Mg(O2C−(CH2)11−Acr)2, and one from the disubstituted benzoate, Mg(O2CC6H3(O−(CH2)11−Acr)2)2. These compounds were shown, by DSC and X-ray diffraction studies, to exhibit a hexagonal columnar mesophase at room temperature. The photopolymerization of the Zn(II) and Mg(II) derivatives, either in the liquid-crystalline phase or in the isotropic phase, was performed with high final conversion, from 50 to 80%, depending on the compound and on the temperature, whereas the copper complex was found unreactive toward the p...
- Published
- 1998