Next Article in Journal
Recent Developments in Graphene/Polymer Nanocomposites for Application in Polymer Solar Cells
Next Article in Special Issue
Humidity Induces Changes in the Dimensions of Hydrogel-Coated Wool Yarns
Previous Article in Journal
Novel Amphiphilic, Biodegradable, Biocompatible, Thermo-Responsive ABA Triblock Copolymers Based on PCL and PEG Analogues via a Combination of ROP and RAFT: Synthesis, Characterization, and Sustained Drug Release from Self-Assembled Micelles
Previous Article in Special Issue
Investigation of Mechanical Properties of Silicone/Phosphor Composite Used in Light Emitting Diodes Package
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Polymers 2018, 10(2), 216; https://doi.org/10.3390/polym10020216

Mechanism Analysis of Selective Adsorption and Specific Recognition by Molecularly Imprinted Polymers of Ginsenoside Re

1
School of chemical engineering, University of science and technology, Liaoning, Anshan 114051, China
2
Liaoning Provincial Key Laboratory of Fine Separation Technique, University of Science and Technology, Anshan 114051, China
*
Author to whom correspondence should be addressed.
Received: 22 January 2018 / Revised: 18 February 2018 / Accepted: 20 February 2018 / Published: 22 February 2018
(This article belongs to the Special Issue Mechanics of Emerging Polymers with Unprecedented Networks)
View Full-Text   |   Download PDF [4148 KB, uploaded 24 February 2018]   |  

Abstract

In this article, the molecularly imprinted polymers (MIPs) of ginsenoside Re (Re) were synthesized by suspension polymerization with Re as the template molecule, methacrylic acid (MAA) as the functional monomers, and ethyl glycol dimethacrylate (EGDMA) as the crosslinker. The MIPs were characterized by Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), and surface porosity detector, and the selective adsorption and specific recognition of MIPs were analyzed using the theory of kinetics and thermodynamics. The experimental results showed that compared with non-imprinted polymers (NIPs), MIPs had a larger specific surface area and special pore structure and that different from the Langmuir model of NIPs, the static adsorption isotherm of MIPs for Re was in good agreement with the Freundlich model based on the two adsorption properties of MIPs. The curves of the adsorption dynamics and the lines of kinetic correlation indicate that there was a fast and selective adsorption equilibrium for Re because of the affinity of MIPs to the template rather than its analogue of ginsenoside Rg1 (Rg1). The study of thermodynamics indicate that the adsorption was controlled by enthalpy and that MIPs had higher enthalpy and entropy than NIPs, which contributed to the specific recognition of MIPs. View Full-Text
Keywords: molecularly imprinted polymers; ginsenoside Re; thermodynamics; kinetics; mechanism molecularly imprinted polymers; ginsenoside Re; thermodynamics; kinetics; mechanism
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Zhang, W.; Li, Q.; Cong, J.; Wei, B.; Wang, S. Mechanism Analysis of Selective Adsorption and Specific Recognition by Molecularly Imprinted Polymers of Ginsenoside Re. Polymers 2018, 10, 216.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top