Details

Autor(en) / Beteiligte

• Park, Minwook
• Stricker, Friedrich
• Campos, Jesus Guillen
• Clark, Kyle D.
• Lee, Jaejun
• Kwon, Younghoon
• Valentine, Megan T.
• Read de Alaniz, Javier

Titel

Design of Surface-Aligned Main-Chain Liquid-Crystal Networks Prepared under Ambient, Light-Free Conditions Using the Diels–Alder Cycloaddition

Ist Teil von

• ACS macro letters, 2023-01, Vol.12 (1), p.33-39

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2023

Link zum Volltext

Quelle

MEDLINE

Beschreibungen/Notizen

• 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.