Issue 17, 2018, Issue in Progress
From the journal:

RSC Advances

Controllable thermal and pH responsive behavior of PEG based hydrogels and applications for dye adsorption and release

Hailong Huang, ORCID logo a   Lifeng Hou,a   Feng Zhu,a   Juan Li*a  and  Min Xu*a  

* Corresponding authors

a School of Physics and Materials Science, Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, No. 3663 North Zhongshan Road, Shanghai 200062, P R China
E-mail: xumin@phy.ecnu.edu.cn, jli@phy.ecnu.edu.cn

Abstract

A series of controllable thermal and pH dual-responsive copolymeric hydrogels (PMA) were prepared by a one-pot reaction with poly(ethylene glycol) methyl ether acrylate (PEGA), 2-methoxyethyl acrylate (MEA) and acroleic acid (AA). The hydrogels exhibited good mechanical properties and a sensitive response to pH and temperature. Besides, the Lower Critical Solution Temperature (LCST) of the hydrogels can be adjusted from 37 °C to 58 °C by changing the content of AA. The hydrogels also showed excellent selective adsorption properties. The maximum adsorption quantity of organic cationic dye brilliant green and methylene blue were 0.49 mg mg−1 and 0.42 mg mg−1 respectively, much better than previous reports. Furthermore, using the thermal and pH responsibility, the PMA hydrogels can release the adsorbed molecules with control. Nearly 95% of carriers could be released at pH 4.01 and 65 °C over 8 h. The regeneration ability makes the materials easy to reuse many times. Due to these properties, these dual-responsive hydrogels have great potential applications in various fields for adsorption, drug delivery, release and tissue engineering.

Graphical abstract: Controllable thermal and pH responsive behavior of PEG based hydrogels and applications for dye adsorption and release

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/C8RA01018H
Article type
Paper
Submitted
02 Feb 2018
Accepted
27 Feb 2018
First published
05 Mar 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 9334-9343

Permissions

Request permissions

Controllable thermal and pH responsive behavior of PEG based hydrogels and applications for dye adsorption and release

H. Huang, L. Hou, F. Zhu, J. Li and M. Xu, RSC Adv., 2018, 8, 9334 DOI: 10.1039/C8RA01018H

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements