期刊
RSC ADVANCES
卷 6, 期 19, 页码 15441-15450出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra26907e
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资金
- Free State of Bavaria
- Deutsche Forschungsgemeinschaft [INST 93/774-1 FUGG]
Transition metal ions, like Fe2+, Co2+ and Ni2+ coordinate to ditopic ligands such as 1,4-bis(2,2':6',2 ''-terpyridin-4'-yl) benzene (1) forming sufficiently strong yet dynamic bonds in aqueous solutions, leading to extended, rigid-rod like metallo-supramolecular coordination polyelectrolytes (MEPEs). Here, we present a way to adjust the average molar mass, chain-length and viscosity of MEPEs using the monotopic chain stopper 4'-(phenyl)-2,2':6',2 ''-terpyridine (2). The systems are analyzed by light scattering and viscometry. The experiments indicate that chain-length and viscosity of the MEPEs are modifiable in predictable ways by adding the monotopic chain stopper, 2. Light scattering is a suitable method for studying the molar mass and also the shape of the MEPEs.
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