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Title: Self-catalyzed synthesis of a nano-capsule and its application as a heterogeneous RCMP catalyst and nano-reactor
Authors: Oh, Xin Yi
Sakar, Jit
Cham, Ning
Er, Gerald Tze Kwang
Pan, Houwen Matthew
Goto, Atsushi
Keywords: Science::Chemistry
Issue Date: 2022
Source: Oh, X. Y., Sakar, J., Cham, N., Er, G. T. K., Pan, H. M. & Goto, A. (2022). Self-catalyzed synthesis of a nano-capsule and its application as a heterogeneous RCMP catalyst and nano-reactor. Polymer Chemistry, 13(44), 6187-6196.
Project: NRF-NRFI05-2019-0001 
Journal: Polymer Chemistry 
Abstract: A novel polymeric nano-capsule bearing quaternary ammonium iodide (QAI) groups on both the outer and inner surfaces of the shell was synthesized via self-catalyzed polymerization-induced self-assembly (PISA). Because QAI works as a catalyst of reversible complexation mediated living radical polymerization (RCMP), the obtained nano-capsule was exploited as a dual RCMP catalyst based on the outer and inner QAI groups. Benefitting from the outer QAI groups, the nano-capsule served as a supported heterogeneous RCMP catalyst with good recyclability to generate polymers outside the nano-capsule. Benefitting from the inner QAI groups, the nano-capsule served as a nano-reactor to generate polymers inside the nano-capsule. The nano-capsule served as a substrate-sorting nano-reactor based on the selective diffusivity of small molecules and polymers through the shell by their sizes. Namely, large molecules (polymers) once generated in the nano-reactor are not permeable through the shell, enabling the entrapment of the generated polymers in the nano-capsule. A homopolymer, an amphiphilic block copolymer, and a multi-polarity and multielemental block copolymer were synthesized and entrapped in the nano-capsule.
ISSN: 1759-9954
DOI: 10.1039/D2PY01086K
Schools: School of Chemistry, Chemical Engineering and Biotechnology 
Rights: © 2022 The Royal Society of Chemistry. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CCEB Journal Articles

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