Issue 12, 2020, Issue in Progress
From the journal:

RSC Advances

Light and magnetism dual-gated photoinduced electron transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization†

Lingjuan Hu,‡a   Qi Wang,‡a   Xiaomeng Zhang,a   Haitao Zhao,a   Zhe Cui,a   Peng Fu,a   Minying Liu,a   Nan Liu, ORCID logo b   Shengbao He,b   Xinchang Pang*a  and  Xiaoguang Qiao*a  

* Corresponding authors

a Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, China
E-mail: Pangxinchang1980@163.com, joexiaoguang@hotmail.com

b China National Tobacco Quality Supervision and Test Centre, Zhengzhou 450001, China

Abstract

A novel raspberry-like γ-Fe2O3@carbon dot (CD) nanocatalyst was prepared and applied for photoinduced electron transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization. The nanocatalyst was found to be an efficient photocatalyst in visible light-regulated PET-RAFT polymerization owing to the oxidative quenching mechanism between the photoexcited γ-Fe2O3@CDs and the RAFT agent in the PET process. Notably, polymerization can be reversibly ceased in the absence of light or under an external magnetic field. The superparamagnetic nature and high saturation magnetization value (∼30.4 emu g−1) of the nanocatalyst contribute to convenient recycling of the nanocatalyst after polymerization. The PET-RAFT polymerization with the nanocatalyst before and after recycling was investigated, which displayed all the characteristics of controlled/living polymerization systems.

Graphical abstract: Light and magnetism dual-gated photoinduced electron transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization

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Article information

DOI
https://doi.org/10.1039/D0RA00401D
Article type
Paper
Submitted
20 Dec 2019
Accepted
24 Jan 2020
First published
13 Feb 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 6850-6857

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Light and magnetism dual-gated photoinduced electron transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization

L. Hu, Q. Wang, X. Zhang, H. Zhao, Z. Cui, P. Fu, M. Liu, N. Liu, S. He, X. Pang and X. Qiao, RSC Adv., 2020, 10, 6850 DOI: 10.1039/D0RA00401D

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