Ordered Bicontinuous Network Structures Regulated by Orientational Interactions in a Rod-Coil Block Copolymer

Xiao-Lin Lyu; Shi-Chu Yang; An-Qi Xiao; Ping-Ping Hou; Wei Zhang; Hong-Bing Pan; Zhi-Hao Shen; Xing-He Fan; Qi-Feng Zhou

doi:10.1007/s10118-024-3082-z

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Ordered Bicontinuous Network Structures Regulated by Orientational Interactions in a Rod-Coil Block Copolymer

RESEARCH ARTICLE | Updated：2024-04-12

- Ordered Bicontinuous Network Structures Regulated by Orientational Interactions in a Rod-Coil Block Copolymer
- Chinese Journal of Polymer Science Vol. 42, Issue 5, Pages: 636-642(2024)
- Affiliations：
  
  a.Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  b.Key Laboratory of Advanced Materials Technologies, International (HongKong Macao and Taiwan) Joint Laboratory on Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
- Author bio：
  
  lyuxiaolin@fzu.edu.cn (X.L.L.)
  zshen@pku.edu.cn (Z.H.S.)
- Funds：
- DOI：10.1007/s10118-024-3082-z
  CLC：
- Received：09 November 2023，
  
  Revised：2023-12-7，
  
  Accepted：21 December 2023，
  
  Online First：28 January 2024，
  
  Published：01 May 2024
- Accepted：
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Lyu, X. L.; Yang, S. C.; Xiao, A. Q.; Hou, P. P.; Zhang, W.; Pan, H. B.; Shen, Z. H.; Fan, X. H.; Zhou, Q. F. Ordered bicontinuous network structures regulated by orientational interactions in a rod-coil block copolymer. Chinese J. Polym. Sci. 2024, 42, 636–642

Xiao-Lin Lyu, Shi-Chu Yang, An-Qi Xiao, et al. Ordered Bicontinuous Network Structures Regulated by Orientational Interactions in a Rod-Coil Block Copolymer[J]. Chinese Journal of Polymer Science, 2024, 42(5): 636-642.
Lyu, X. L.; Yang, S. C.; Xiao, A. Q.; Hou, P. P.; Zhang, W.; Pan, H. B.; Shen, Z. H.; Fan, X. H.; Zhou, Q. F. Ordered bicontinuous network structures regulated by orientational interactions in a rod-coil block copolymer. Chinese J. Polym. Sci. 2024, 42, 636–642 DOI： 10.1007/s10118-024-3082-z.

Xiao-Lin Lyu, Shi-Chu Yang, An-Qi Xiao, et al. Ordered Bicontinuous Network Structures Regulated by Orientational Interactions in a Rod-Coil Block Copolymer[J]. Chinese Journal of Polymer Science, 2024, 42(5): 636-642. DOI： 10.1007/s10118-024-3082-z.

摘要

The ordered bicontinuous phase is rarely obtained in block copolymers because of the competition between the minimization of interfacial energy and packing frustration. Orientational interaction is regulated to compensate packing frustration for stabilizing ordered bicontinuous network structures.

Abstract

The rich phase behavior of block copolymers (BCPs) has drawn great attention in recent years. However

the double diamond (DD) phase is rarely obtained because of the competition between the minimization of interfacial energy and packing frustration. Here

a rod-coil BCP containing mesogen-jacketed liquid crystalline polymer is designed to acquire ordered bicontinuous network nanostructures. The reduction of internal energy originating from the orientational interaction among the rod blocks can compensate for the free energy penalty of packing frustration to stabilize the DD structure. The resulting BCP can also experience lamellae-to-DD and double gyroid-to-lamellae transitions by changing the annealing temperature. These results make the rod-coil BCP an excellent candidate for the self-assembly of ordered network structures

demonstrating great potential in nanopatterning and metamaterials.

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references

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