Process-directed Self-assembly of Perforated Lamellar Mesostructure with <italic style="font-style: italic">P</italic>6/<italic style="font-style: italic">mmm</italic> Symmetry in Linear Multiblock Copolymers

Hao Li; Hong Li; De-Wen Sun; Li-Jia An

doi:10.1007/s10118-026-3874-4

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Process-directed Self-assembly of Perforated Lamellar Mesostructure with P6/mmm Symmetry in Linear Multiblock Copolymers

RESEARCH ARTICLE | Updated：2026-10-28

- Process-directed Self-assembly of Perforated Lamellar Mesostructure with P6/mmm Symmetry in Linear Multiblock Copolymers
- Chinese Journal of Polymer Science Vol. 44, Pages: 1-10(2026)
- Affiliations：
  
  a.State Key Laboratory of Polymer Science and Technology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  b.School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei 230026, China
  c.State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
  d.School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Author bio：
  
  dwsun@ciac.ac.cn
- Funds：
- DOI：10.1007/s10118-026-3874-4
  CLC：
- Received：14 August 2026，
  
  Accepted：07 September 2026，
  
  Online First：28 October 2026，
  
  Published：2026-10
- Accepted：
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Li, H.; Li, H.; Sun, D. W.; An, L. J. Process-directed self-assembly of perforated lamellar mesostructure with P6/mmm symmetry in linear multiblock copolymers. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3874-4

Hao Li, Hong Li, De-Wen Sun, et al. Process-directed Self-assembly of Perforated Lamellar Mesostructure with P6/mmm Symmetry in Linear Multiblock Copolymers[J/OL]. Chinese Journal of Polymer Science, 2026, 441-10. DOI: 10.1007/s10118-026-3874-4.
Li, H.; Li, H.; Sun, D. W.; An, L. J. Process-directed self-assembly of perforated lamellar mesostructure with P6/mmm symmetry in linear multiblock copolymers. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3874-4 DOI：

Hao Li, Hong Li, De-Wen Sun, et al. Process-directed Self-assembly of Perforated Lamellar Mesostructure with P6/mmm Symmetry in Linear Multiblock Copolymers[J/OL]. Chinese Journal of Polymer Science, 2026, 441-10. DOI: 10.1007/s10118-026-3874-4. DOI：

摘要

Abstract

The rugged free-energy landscape of block copolymers features a multitude of local free-energy minima in addition to the only global free-energy minimum

giving rise to long-lived metastable states and enabling the fabrication of desired

metastable mesostructure in a process-accessible manner. Considering that the fabrication of perforated lamellar mesostructures in block copolymers

via

the stabilization strategy by either fine-tuning the chain architecture of the block copolymer or blending cannot fix the stacking sequence of hexagonally perforated layers in experiments due to similar free energies of different stacking sequences an

d leads to limited stable regions

using general symmetry considerations

we design a symmetry-conserving process to obtain the desired perforated lamellar mesostructure. The thermodynamically stable iHP

with

mmm

symmetry of No. 191 space group in linear

$$ {B}_{1}{A}_{1}{B}_{2}{A}_{2}{B}_{3} $$

http://notExist.jpg

pentablock copolymer melts is chosen as the initial

equilibrium mesophase

based on which the desired

starting

unstable states are generated using the isothermal

alchemical conversion process of the

-blocks of linear

$$ {\tilde{B}}_{1}{\tilde{C}}_{1}{A}_{1}{B}_{2}{A}_{2}{C}_{3} $$

http://notExist.jpg

$$ {C}_{1}{A}_{1}{B}_{2}{A}_{2}{C}_{3} $$

http://notExist.jpg

and

$$ {C}_{1}{A}_{1}{\tilde{C}}_{2}{\tilde{B}}_{2}{A}_{2}{C}_{3} $$

http://notExist.jpg

multiblock copolymers from

. Ensuing from the corresponding starting

unstable states

the perforated lamellar mesostructure exhi

biting only the AA… sequence of perforated lamellar layers with

mmm

symmetry as well can be process-accessibly obtained with large fabrication ranges. Field theory is employed to implement our explorations.

关键词

Keywords

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⁰

Process-directed Self-assembly of Perforated Lamellar Mesostructure with P6/mmm Symmetry in Linear Multiblock Copolymers

DOI：10.1007/s10118-026-3874-4

摘要

Abstract

关键词

Keywords

references