6533b82efe1ef96bd129451c

RESEARCH PRODUCT

Synthesis and properties of aromatic ionenes

Rolf C. SchulzGerd C. Hochberg

subject

chemistry.chemical_classificationPolymers and PlasticsOrganic Chemistryfood and beveragesAlkylationPolyelectrolyteIon selective electrodechemistryPolymer chemistryMaterials ChemistryTitrationThermal stabilityCounterionSolubilityGlass transition

description

Cationic polyelectrolytes with aromatic segments can be synthesized by a repetitive alkylation reaction. The structure of the products, their synthesis and their solubility are described. All ionenes are not, or only in small amounts, water soluble. The best solubility can be achieved by mixtures of polar protic and aprotic solvents. Variations of the counterion produces sufficient solubility in THF. All ionenes show a typical polyelectrolyte effect. The thermal stability of aromatic ionenes and the glass transition temperature is dominated by the nature of the counterion. The molecular weight of oligomers can be described by using a combination of a conductive titration method and an ion selective electrode.

https://doi.org/10.1002/pi.4990320315