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Synthesis and Characterization of Self-Assembled Metal-Organic Framework Monolayers Using Polymer-Coated Particles
Published on: June 14, 2024
A study on the self-assembly behavior of dark materials from molasses
Ken-ichi Hatano1, Isamu Komatsu, Naokazu Aoyagi
1Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma, 376-8515, Japan. hatano@gunma-u.ac.jp
Environmental Science and Pollution Research International
|December 6, 2012
Summary
Dark materials (DM) from molasses self-assemble via hydrogen-bonding and hydrophobic interactions. These aggregates bind to resin through hydrophobic forces and are released by generating carboxylate anions.
Area of Science:
- Colloid and Surface Chemistry
- Biopolymer Science
- Environmental Chemistry
Background:
- Dark materials (DM) in molasses are effectively adsorbed by Amberlite XAD7HP resin.
- Understanding the self-assembly of molasses DM is crucial for optimizing resin adsorption mechanisms.
Purpose of the Study:
- To characterize the self-assembly behavior of molasses DM.
- To elucidate the resin adsorption mechanism of molasses DM.
Main Methods:
- Dynamic and static light scattering
- Isoelectric focusing
- Infrared absorption spectroscopy
Main Results:
- A molasses DM derivative (X-G2) contains carboxyl and hydroxyl groups.
- X-G2 aggregates exhibit spherical shape, large gyration radius (66.4-80.0 nm), and a loosely packed inner structure.
- X-G2 has an isoelectric point of 1.8, with density increasing sharply at pH 5.9.
Conclusions:
- Self-assembly of molasses DM is governed by intermolecular hydrogen-bonding and hydrophobic interactions.
- Resin adsorption occurs via hydrophobic interactions.
- Elution is achieved by generating excess carboxylate anions.
