A simple and divergent synthetic strategy of bottlebrush polymers (BBPs) is presented, consisting of postpolymerization modification of a macromonomer and grafting-through polymerization. Beginning with a single macromonomer, its direct modification could build a library of macromonomers with an identical chain length, thus guaranteeing the precision in the synthesis of BBPs. In this study, a newly designed norbornenyl-terminated poly(methyl acrylate) (NB-PMA) is proposed as a chemically robust template. Ti-mediated transesterification of NB-PMA successfully produces structurally diverse polyacrylates while maintaining the terminal norbornenyl group intact. All macromonomers obtained from transesterification possess a good grafting-through ring-opening metathesis polymerization reactivity, furnishing homo, random, and block BBPs in a controllable manner. Moreover, atomic force microscopy analysis supports the controlled side-chain length distribution in the resulting BBPs.
|Number of pages||8|
|Journal||Journal of Polymer Science|
|Publication status||Published - 2020 Nov 15|
Bibliographical noteFunding Information:
National Research Foundation of Korea, Grant/Award Numbers: NRF‐2019R1A2C1087769, NRF‐2017R1A2B3012148 Funding information
We gratefully acknowledge financial support from the National Research Foundation of Korea (NRF‐2019R1A2C1087769 and NRF‐2017R1A2B3012148). Jeung Gon Kim was supported by the selection of research‐oriented professor of Jeonbuk National University in 2020.
© 2020 Wiley Periodicals LLC
All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Materials Chemistry
- Polymers and Plastics