Abstract
A series of second generation of amphiphilic dendronized homopolymers are efficiently synthesized, and their thermoresponsiveness in aqueous solutions and secondary structures in methanol solutions are described. These polymers are constructed in each repeat unit with various generations of hydrophobic 4-aminoproline and hydrophilic oligoethylene glycol (OEG)-based dendrons, and their over-all hydrophilicity is tuned by varying these dendron generations. Polymers with or without the first generation of proline dendron show good water solubility at room temperature, but exhibit typical thermoresponsive behaviors at elevated temperatures as characterized by turbidity measurements using UV-vis spectroscopy, while the polymer with the secondary generation of proline dendron is not soluble in water. All polymers show ordered secondary structures as evidenced by the optical rotation and circular dichroism experiments. Finally, assembly of these amphiphilic homopolymers into porous films via breath figure (BF) technique is described, and polymer structures are found to show significant influence on the morphology of porous film.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.