Abstract
Complexes associated with strong electrostatic interactions constitute a valuable method to construct tough hydrogels, but current systems are either unstable in saline environments or lead to relatively soft matrices. Herein, a class of acid‐base complex (ABC) hydrogels made from poly(2‐(dimethylamino)ethyl methacrylate) and glassy poly(methacrylic acid) (PMA) is reported. The tough hydrogels are prepared via a dialysis‐free process and maintain their structure in saline solutions. Results indicate that the glassy feature of PMA endows the ABC hydrogels with high moduli (227 MPa), typical yielding points (3 MPa), and moderate stretchability (300% strain). The glassy backbones (PMA chains) are stiff at low temperatures, and would be melted at high temperatures, which bring about interesting shape‐memory effects and inverse memory‐forgetting behaviors. These results may inspire a simple but powerful strategy to design innovative hydrogel materials.
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.