Cost-effective Synthesis of Bottlebrush Block Copolymers from <italic style="font-style: italic">endo</italic>-<italic style="font-style: italic">exo</italic> Mixture Macromonomers

Jia-Qi Sun; Zan Gao; Bang-Bang Wang; Yue-Sheng Li; Dong-Po Song

doi:10.1007/s10118-026-3731-5

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Cost-effective Synthesis of Bottlebrush Block Copolymers from endo-exo Mixture Macromonomers

RESEARCH ARTICLE | Updated：2026-07-10

- Cost-effective Synthesis of Bottlebrush Block Copolymers from endo-exo Mixture Macromonomers
- Chinese Journal of Polymer Science Vol. 44, Pages: 1-10(2026)
- Affiliations：
  
  a.Tianjin Key Laboratory of Composite and Functional Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
  b.State Key Laboratory of High Performance Roll Materials and Composite Forming, School of Materials Science and Engineering, Tianjin University, Tianjin 300350, China
- Author bio：
  
  dongpo.song@tju.edu.cn
- Funds：
- DOI：10.1007/s10118-026-3731-5
  CLC：
- Received：04 April 2026，
  
  Accepted：29 April 2026，
  
  Online First：09 July 2026，
  
  Published：2026-05
- Accepted：
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Sun, J. Q.; Gao, Z.; Wang, B. B.; Li, Y. S.; Song, D. P. Cost-effective synthesis of bottlebrush block copolymers from endo-exo mixture macromonomers. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3731-5

Jia-Qi Sun, Zan Gao, Bang-Bang Wang, et al. Cost-effective Synthesis of Bottlebrush Block Copolymers from endo-exo Mixture Macromonomers[J/OL]. Chinese Journal of Polymer Science, 2026, 441-10. DOI: 10.1007/s10118-026-3731-5.
Sun, J. Q.; Gao, Z.; Wang, B. B.; Li, Y. S.; Song, D. P. Cost-effective synthesis of bottlebrush block copolymers from endo-exo mixture macromonomers. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3731-5 DOI：

Jia-Qi Sun, Zan Gao, Bang-Bang Wang, et al. Cost-effective Synthesis of Bottlebrush Block Copolymers from endo-exo Mixture Macromonomers[J/OL]. Chinese Journal of Polymer Science, 2026, 441-10. DOI: 10.1007/s10118-026-3731-5. DOI：

摘要

Abstract

The synthesis of bottlebrush block copolymers (BBCPs)

via

ring-opening metathesis polymerization (ROMP) typically relies on

exo

-norbornene-terminated macromonomers to achieve high polymerization rates. However

norbornene derivatives synthesized

via

the Diels-Alder reaction were obtained as mixtures of

exo

and

endo

isomers

with the

endo

isomer predominating. This presents a significant challenge for the preparation of well-defined BBCPs from such mixtures because of the inherently low ROMP reactivity of

endo

-norbornene. Here

we demonstrate that polymerization kinetics are s

trongly influenced by the solvent

temperature

and configuration of the norbornene end group. By optimizing these parameters

the complete conversion of

endo

exo

macromonomer mixtures can be achieved within a short time

enabling the efficient synthesis of well-defined BBCPs. The resulting BBCPs exhibited self-assembly behavior comparable to those prepared from purely

exo

-norbornene-terminated macromonomers

forming structurally colored polymer microspheres that function as eco-friendly photonic pigments. This study provides an efficient and cost-effective strategy for the synthesis of BBCPs using commercially available norbornene derivatives.

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Keywords

references

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⁰

Cost-effective Synthesis of Bottlebrush Block Copolymers from endo-exo Mixture Macromonomers

DOI：10.1007/s10118-026-3731-5

摘要

Abstract

关键词

Keywords

references