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
- Ordered Bicontinuous Network Structures Regulated by Orientational Interactions in a Rod-Coil Block Copolymer
- 高分子科学（英文版） 2024年42卷第5期页码：636-642
- 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：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 51921002, 22203015 and 51725301), Natural Science Foundation of Fujian Province (No. 2021J01591), and the National Key R&D Program of China (No. 2018YFB0703702). The suggestions and help offered by Prof. Rong-Ming Ho of National Tsing Hua University are greatly appreciated. The authors acknowledge the scientists at the synchrotron X-ray beamline 1W2A at Beijing Synchrotron Radiation Facility (BSRF) and the synchrotron X-ray beamline BL16B1 at Shanghai Synchrotron Radiation Facility (SSRF) for their assistance on the SAXS experiments.;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-024-3082-z.
- DOI：10.1007/s10118-024-3082-z
  中图分类号：
- 纸质出版日期：2024-5-1，
  
  网络出版日期：2024-1-28，
  
  收稿日期：2023-11-9，
  
  修回日期：2023-12-7，
  
  录用日期：2023-12-21
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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.

关键词

Keywords

Block copolymerRod-coilOrdered bicontinuous phaseDouble diamondDouble gyroid

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