---
OA_type: closed access
_id: '21818'
abstract:
- lang: eng
  text: Surface-aligned liquid-crystal networks (LCNs) offer a solution for developing
    functional materials capable of performing a range of tasks, including actuation,
    shape memory, and surfaces patterning. Here we show that Diels–Alder cycloaddition
    can be used to prepare the backbone of planar aligned LCNs under mild ambient
    conditions without the addition of additives or UV irradiation. The mechanical
    properties of the networks have robust viscoelastic modulus and stiffness with
    a reversible local free volume change upon physical aging. This study shows new
    opportunities to design surface-aligned LCNs based on additive free step-growth
    Diels–Alder polymerization and enables the potential to incorporate a wider range
    of photochromic materials into LCNs.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Minwook
  full_name: Park, Minwook
  last_name: Park
- first_name: Friedrich J
  full_name: Stricker, Friedrich J
  id: 7aca2cfc-46cf-11f0-abd3-8c96b5186745
  last_name: Stricker
- first_name: Jesus Guillen
  full_name: Campos, Jesus Guillen
  last_name: Campos
- first_name: Kyle D.
  full_name: Clark, Kyle D.
  last_name: Clark
- first_name: Jaejun
  full_name: Lee, Jaejun
  last_name: Lee
- first_name: Younghoon
  full_name: Kwon, Younghoon
  last_name: Kwon
- first_name: Megan T.
  full_name: Valentine, Megan T.
  last_name: Valentine
- first_name: Javier
  full_name: Read de Alaniz, Javier
  last_name: Read de Alaniz
citation:
  ama: Park M, Stricker FJ, Campos JG, et al. Design of surface-aligned main-chain
    liquid-crystal networks prepared under ambient, light-free conditions using the
    Diels–Alder cycloaddition. <i>ACS Macro Letters</i>. 2023;12(1):33-39. doi:<a
    href="https://doi.org/10.1021/acsmacrolett.2c00616">10.1021/acsmacrolett.2c00616</a>
  apa: Park, M., Stricker, F. J., Campos, J. G., Clark, K. D., Lee, J., Kwon, Y.,
    … Read de Alaniz, J. (2023). Design of surface-aligned main-chain liquid-crystal
    networks prepared under ambient, light-free conditions using the Diels–Alder cycloaddition.
    <i>ACS Macro Letters</i>. American Chemical Society. <a href="https://doi.org/10.1021/acsmacrolett.2c00616">https://doi.org/10.1021/acsmacrolett.2c00616</a>
  chicago: Park, Minwook, Friedrich J Stricker, Jesus Guillen Campos, Kyle D. Clark,
    Jaejun Lee, Younghoon Kwon, Megan T. Valentine, and Javier Read de Alaniz. “Design
    of Surface-Aligned Main-Chain Liquid-Crystal Networks Prepared under Ambient,
    Light-Free Conditions Using the Diels–Alder Cycloaddition.” <i>ACS Macro Letters</i>.
    American Chemical Society, 2023. <a href="https://doi.org/10.1021/acsmacrolett.2c00616">https://doi.org/10.1021/acsmacrolett.2c00616</a>.
  ieee: M. Park <i>et al.</i>, “Design of surface-aligned main-chain liquid-crystal
    networks prepared under ambient, light-free conditions using the Diels–Alder cycloaddition,”
    <i>ACS Macro Letters</i>, vol. 12, no. 1. American Chemical Society, pp. 33–39,
    2023.
  ista: Park M, Stricker FJ, Campos JG, Clark KD, Lee J, Kwon Y, Valentine MT, Read
    de Alaniz J. 2023. Design of surface-aligned main-chain liquid-crystal networks
    prepared under ambient, light-free conditions using the Diels–Alder cycloaddition.
    ACS Macro Letters. 12(1), 33–39.
  mla: Park, Minwook, et al. “Design of Surface-Aligned Main-Chain Liquid-Crystal
    Networks Prepared under Ambient, Light-Free Conditions Using the Diels–Alder Cycloaddition.”
    <i>ACS Macro Letters</i>, vol. 12, no. 1, American Chemical Society, 2023, pp.
    33–39, doi:<a href="https://doi.org/10.1021/acsmacrolett.2c00616">10.1021/acsmacrolett.2c00616</a>.
  short: M. Park, F.J. Stricker, J.G. Campos, K.D. Clark, J. Lee, Y. Kwon, M.T. Valentine,
    J. Read de Alaniz, ACS Macro Letters 12 (2023) 33–39.
date_created: 2026-05-06T10:55:24Z
date_published: 2023-01-17T00:00:00Z
date_updated: 2026-05-12T10:03:44Z
day: '17'
doi: 10.1021/acsmacrolett.2c00616
extern: '1'
external_id:
  pmid:
  - '36541858'
intvolume: '        12'
issue: '1'
language:
- iso: eng
month: '01'
oa_version: None
page: 33-39
pmid: 1
publication: ACS Macro Letters
publication_identifier:
  eissn:
  - 2161-1653
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Design of surface-aligned main-chain liquid-crystal networks prepared under
  ambient, light-free conditions using the Diels–Alder cycloaddition
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 12
year: '2023'
...