Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/162305
Title: Magnetically directed co-nanoinitiators for cross-linking adhesives and enhancing mechanical properties
Authors: Kongcharoen, Haruethai
Coester, Birte
Yu, Fei
Aziz, Izzat
Poh, Wei Church
Tan, Matthew Wei Ming
Tonanon, Panyawut
Ciou, Jing-Hao
Chan, Benjamin
Webster, Richard David
Lew, Wen Siang
Lee, Pooi See
Keywords: Engineering::Materials
Science::Chemistry
Issue Date: 2021
Source: Kongcharoen, H., Coester, B., Yu, F., Aziz, I., Poh, W. C., Tan, M. W. M., Tonanon, P., Ciou, J., Chan, B., Webster, R. D., Lew, W. S. & Lee, P. S. (2021). Magnetically directed co-nanoinitiators for cross-linking adhesives and enhancing mechanical properties. ACS Applied Materials and Interfaces, 13(48), 57851-57863. https://dx.doi.org/10.1021/acsami.1c08040
Project: RG63/20
2020-T1-001-165
Journal: ACS Applied Materials and Interfaces 
Abstract: Magnetically directed localized polymerization is of immense interest for its extensive impacts and applications in numerous fields. The use of means untethered from an external magnetic field to localize initiation of polymerization to develop a curing system is a novel concept, with a sustainable, efficient, and eco-friendly approach and a wide range of potential in both science and engineering. However, the conventional means for the initiation of polymerization cannot define the desirable location of polymerization, which is often exacerbated by the poor temporal control in the curing system. Herein, the copper-immobilized dendrimer-based magnetic iron oxide silica (MNPs-G2@Cu2+) co-nanoinitiators are rationally designed as initiators for redox radical polymerization. The nanoinitiators are magnetically responsive and therefore enable localized polymerization using an external magnetic field. In this work, anaerobic polymerization of an adhesive composed of triethylene glycol dimethacrylate, tert-butyl peroxybenzoate, and MNPs-G2@Cu2+ as the magnetic co-nanoinitiators has been investigated. The use of a magnet locates and promotes redox free radical polymerization through the synergistic functions between peroxide and MNPs-G2@Cu2+ co-nanoinitiators. The mechanical properties of the resulting polymer are considerably reinforced because the MNPs-G2@Cu2+ co-nanoinitiators concurrently play another crucial role as nanofillers. This strategy provides a novel approach for magnetically tunable localized polymerization, which allows new opportunities to govern the formulation of advanced adhesives through polymerization under hazard-free conditions for various promising applications.
URI: https://hdl.handle.net/10356/162305
ISSN: 1944-8244
DOI: 10.1021/acsami.1c08040
Rights: © 2021 American Chemical Society. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles
SPMS Journal Articles

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