材料科学
环加成
聚合
表面改性
复合材料
化学工程
光电子学
化学物理
有机化学
聚合物
化学
催化作用
工程类
作者
Minwook Park,Friedrich Stricker,Jesus Guillen Campos,Kyle D. Clark,Jaejun Lee,Young Sam Kwon,Megan T. Valentine,Javier Read de Alaniz
出处
期刊:ACS Macro Letters
[American Chemical Society]
日期:2022-12-21
卷期号:12 (1): 33-39
被引量:2
标识
DOI:10.1021/acsmacrolett.2c00616
摘要
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.
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