Next Article in Journal
Thermal Conductivity of Protein-Based Materials: A Review
Previous Article in Journal
Recycled-Oil-Based Polyurethane Modified with Organic Silicone for Controllable Release of Coated Fertilizer
Previous Article in Special Issue
Time Resolved Polarised Grazing Incidence Neutron Scattering from Composite Materials
Article Menu

Export Article

Open AccessArticle
Polymers 2019, 11(3), 455; https://doi.org/10.3390/polym11030455

Effect of Ionic Group on the Complex Coacervate Core Micelle Structure

1
Department of Chemical Engineering, Hongik University, Seoul 04066, Korea
2
Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 34134, Korea
3
Department of Chemical & Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
4
School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Korea
*
Author to whom correspondence should be addressed.
Received: 31 December 2018 / Revised: 22 February 2019 / Accepted: 27 February 2019 / Published: 10 March 2019
Full-Text   |   PDF [3080 KB, uploaded 10 March 2019]   |  

Abstract

Pairs of ionic group dependence of the structure of a complex coacervate core micelle (C3M) in an aqueous solution was investigated using DLS, cryo-TEM, and SANS with a contrast matching technique and a detailed model analysis. Block copolyelectrolytes were prepared by introducing an ionic group (i.e., ammonium, guanidinium, carboxylate, and sulfonate) to poly(ethylene oxide-b-allyl glycidyl ether) (NPEO = 227 and NPAGE = 52), and C3Ms were formed by simple mixing of two oppositely-charged block copolyelectrolyte solutions with the exactly same degree of polymerization. All four C3Ms are spherical with narrow distribution of micelle dimension, and the cores are significantly swollen by water, resulting in relatively low brush density of PEO chains on the core surface. With the pair of strong polyelectrolytes, core radius and aggregation number increases, which reflects that the formation of complex coacervates are significantly sensitive to the pairs of ionic groups rather than simple charge pairing. View Full-Text
Keywords: complex coacervate core micelle; ionic group; small-angle neutron scattering (SANS), contrast matching technique complex coacervate core micelle; ionic group; small-angle neutron scattering (SANS), contrast matching technique
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).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Heo, T.-Y.; Kim, I.; Chen, L.; Lee, E.; Lee, S.; Choi, S.-H. Effect of Ionic Group on the Complex Coacervate Core Micelle Structure. Polymers 2019, 11, 455.

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