Issue 28, 2021

Synthesis of core-crosslinked star polymers via organocatalyzed living radical polymerization

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 polymerization 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 handling of PMMA–Y is an advantage of the use of PMMA–Y. One-pot synthesis of a PBA star polymer 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 polymer. The present approach is free from metals and odorous compounds, which is an attractive feature of the present approach.

Graphical abstract: Synthesis of core-crosslinked star polymers via organocatalyzed living radical polymerization

Supplementary files

Article information

Article type
Paper
Submitted
17 5 2021
Accepted
23 6 2021
First published
05 7 2021

Polym. Chem., 2021,12, 4043-4051

Synthesis of core-crosslinked star polymers via organocatalyzed living radical polymerization

Y. Zheng, J. Sarkar, H. Niino, S. Chatani, S. Y. Hsu and A. Goto, Polym. Chem., 2021, 12, 4043 DOI: 10.1039/D1PY00663K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements