Jump to main content
Jump to site search

Issue 5, 2019
Previous Article Next Article

Multi-stimuli responsive poly(amidoamine) dendrimers with peripheral N-dialkylaminoethyl carbamate moieties

Author affiliations

Abstract

A novel type of multi-stimuli responsive dendrimer with thermo-, pH-, and CO2-responsiveness was developed through facile modification of polyamidoamine dendrimers (PAMAM) with various N-dialkylaminoethyl carbamate moieties. A series of modified PAMAM dendrimers with a well controlled structure were obtained and characterized by 1H NMR. The aqueous solutions of these dendrimers showed a lower critical solution temperature (LCST)-type thermoresponse, and their cloud point temperature (Tcp) was determined by turbidity measurements. Tcp was tunable from 8 to 70 °C, depending on the hydrophobicity and substitution number of the terminal N-dialkylaminoethyl groups, PAMAM generation, pH values, and salt concentrations. Additionally, the solubility of the resultant dendrimers could be reversibly modulated by alternately bubbling CO2 and argon. Our study offers a simple but effective approach to making new multi-stimuli responsive dendrimers for potential smart material applications.

Graphical abstract: Multi-stimuli responsive poly(amidoamine) dendrimers with peripheral N-dialkylaminoethyl carbamate moieties

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Nov 2018, accepted on 27 Dec 2018 and first published on 28 Dec 2018


Article type: Paper
DOI: 10.1039/C8PY01605D
Polym. Chem., 2019,10, 656-662

  •   Request permissions

    Multi-stimuli responsive poly(amidoamine) dendrimers with peripheral N-dialkylaminoethyl carbamate moieties

    Q. Tong, W. Xu, Q. Huang, Y. Zhang, X. Shi, H. Huang, H. Li, J. Du and J. Wang, Polym. Chem., 2019, 10, 656
    DOI: 10.1039/C8PY01605D

Search articles by author

Spotlight

Advertisements