Abstract

The miscibility of the fifth-generation 1,4-diaminobutane poly(propyleneimine) (DAB-PPI) dendrimer and benzene was investigated. The liquid−liquid phase transitions in mixtures containing from 0.02 to 0.26 weight fraction of the dendrimer were determined. It was shown that the miscibility of the dendrimer and benzene depend to a great extent on the water content in the system. The binary system dry dendrimer + dry benzene does not show a liquid−liquid phase split. The addition of small amounts of water (as small as 0.06 wt %) to the system induces complex phase behavior. The liquid−liquid phase transitions in the ternary systems DAB-PPI dendrimer + benzene + water (0.06 wt %) are accompanied by unusual changes in the properties of the coexisting phases. The influence of water on the 1H NMR spectra of the fifth-generation DAB-PPI dendrimer dissolved in benzene was also investigated.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.