The protonation and Cu(II) complex formation of 4 polymers was studied in aq. soln. by potentiometric, calorimetric, and spectroscopic methods. The polymers, having a poly(amidoamine) structure with no ring structures in the amide moieties, were prepd. by reaction of 3,5-bis(acryloyl)-3,5-diazaoctane with MeNH2, 2,4-diazahexane, piperazine, or 2-(dimethylamino)ethylamine. The monomeric units of these flexible polymers behaved independently towards both protonation and complex formation. Comparison with earlier results showed that the presence of the linear diamide moieties in place of 1,4-diacylpiperazine rings had little influence on the protonation consts., although differences were obsd. in the thermodn. functions ΔH and ΔS. Significant differences were obsd. in Cu(II) complex formation.
Macro-inorganics. Part 6. Protonation and complex formation of a new series of polymers whose repeating units behave independently
OLIVA, Leone;
1981-01-01
Abstract
The protonation and Cu(II) complex formation of 4 polymers was studied in aq. soln. by potentiometric, calorimetric, and spectroscopic methods. The polymers, having a poly(amidoamine) structure with no ring structures in the amide moieties, were prepd. by reaction of 3,5-bis(acryloyl)-3,5-diazaoctane with MeNH2, 2,4-diazahexane, piperazine, or 2-(dimethylamino)ethylamine. The monomeric units of these flexible polymers behaved independently towards both protonation and complex formation. Comparison with earlier results showed that the presence of the linear diamide moieties in place of 1,4-diacylpiperazine rings had little influence on the protonation consts., although differences were obsd. in the thermodn. functions ΔH and ΔS. Significant differences were obsd. in Cu(II) complex formation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
