Issue 11, 2016

Design of a C-b-(A-co-B)-b-C telechelic polyampholyte pH-responsive gelator

Abstract

We report the synthesis and characterization of a C-b-(A-co-B)-b-C triblock terpolymer gelator, named telechelic polyampholyte, bearing a P(DEAEMA-co-MAA) statistical polyampholyte as the central long block, end-capped at both ends by PMMA blocks. This associative polymer forms 3D networks in aqueous media, composed of PMMA hydrophobic nanodomains, bridged by the hydrophilic P(DEA-co-MAA) ionogenic blocks. Thanks to the weak acid/base nature of the oppositely charged ionic moieties, the ionization degree of which are controlled by pH, the formed hydrogels exhibit unique pH-responsive behavior. The network structure and in turn the hydrogel rheological properties strongly depend on the preparation conditions, i.e. swelling film or direct dissolution in aqueous media.

Graphical abstract: Design of a C-b-(A-co-B)-b-C telechelic polyampholyte pH-responsive gelator

Supplementary files

Article information

Article type
Paper
Submitted
29 Dec 2015
Accepted
12 Feb 2016
First published
16 Feb 2016

Polym. Chem., 2016,7, 2121-2129

Design of a C-b-(A-co-B)-b-C telechelic polyampholyte pH-responsive gelator

G. Gotzamanis, K. Papadimitriou and C. Tsitsilianis, Polym. Chem., 2016, 7, 2121 DOI: 10.1039/C5PY02066B

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