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Title: Synthesis of core-crosslinked star polymers via organocatalyzed living radical polymerization
Authors: Zheng, Yichao
Sarkar, Jit
Niino, Hiroshi
Chatani, Shunsuke
Hsu, Shu Yao
Goto, Atsushi
Keywords: Science::Chemistry::Organic chemistry::Polymers
Issue Date: 2021
Source: Zheng, Y., Sarkar, J., Niino, H., Chatani, S., Hsu, S. Y. & Goto, A. (2021). Synthesis of core-crosslinked star polymers via organocatalyzed living radical polymerization. Polymer Chemistry, 12(28), 4043-4051.
Project: NRF-NRFI05-2019-0001
Journal: Polymer Chemistry
Abstract: Core-crosslinked star polymers were prepared using organocatalyzed living radical polymerization via a “grafting-through” approach. A PBA homopolymer, an amphiphilic PMMA–PPEGA block copolymer, and a hard-soft PMMA–PBA block copolymer were synthesized as macroinitiators, where PBA is poly(butyl acrylate), PMMA is poly(methyl methacrylate), and PPEGA is poly(poly(ethylene glycol) methyl ether acrylate). The macroinitiators were utilized in the polymerizations of crosslinkable divinyl monomers, generating core-crosslinked star polymers in 40–80% yields. The PMMA–PBA block copolymer macroinitiator was synthesized from a PMMA with an unsaturated chain end (PMMA–Y) via an addition-fragmentation chain transfer method. The ease of the handling of PMMA–Y is an advantage of the use of PMMA–Y. One-pot synthesis of a PBA star was also successful, giving a star in a relatively high yield (73%). The one-pot synthesis offers a practical approach for synthesizing a core-crosslinked star. The present approach is free from metals and odorous compounds, which is an attractive feature of the present approach.
ISSN: 1759-9954
DOI: 10.1039/D1PY00663K
Schools: School of Physical and Mathematical Sciences 
Departments: Division of Chemistry and Biological Chemistry
Rights: © 2021 The Royal Society of Chemistry. All rights reserved. This paper was published in Polymer Chemistry and is made available with permission of The Royal Society of Chemistry.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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