Toward flexible electronics: A novel polyurethane integrating self‐healing, UV‐protective, reprocessable, and degradable properties

Flexible electronics are striving in modern society, and they impose harsh and urgent requirements for flexibility on electronic package substrates. However, traditional materials, including ceramics, metals, or polymers are lack of flexibility. Herein, a polyurethane named PU‐D1Q1VF1 is proposed vi...

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Published inPolymers for advanced technologies Vol. 35; no. 8
Main Authors Feng, Xiao‐qin, Wang, Yi, Dai, Xun, Liu, Xiao‐dong, Liu, Yuan
Format Journal Article
LanguageEnglish
Published Chichester, UK John Wiley & Sons, Ltd 01.08.2024
Wiley Subscription Services, Inc
Subjects
degradable
Electronics
Flexibility
Flexible components
flexible electronics
Healing
Hydroquinone
Monomers
Polycaprolactone
polyurethane
Polyurethane resins
reprocessable
self‐healing
Substrates
UV‐protective
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Summary:Flexible electronics are striving in modern society, and they impose harsh and urgent requirements for flexibility on electronic package substrates. However, traditional materials, including ceramics, metals, or polymers are lack of flexibility. Herein, a polyurethane named PU‐D1Q1VF1 is proposed via incorporating carefully selected biobased units and synergistic dynamic bonds, and the PU‐D1Q1VF1 not only meets the basic requirements of flexibility but also possesses properties of self‐heal, UV‐protection, reprocessability, and degradability. The polycaprolactone diol (PCL diol) was employed as the soft segment, and the bis(2‐hydroxyethyl) disulfide (HEDS) and lignin derived model monomer hydroquinone were selected as chain extenders. Moreover, carefully synthesized bio‐based monomer (E)‐4‐(((furan‐2‐ylmethyl)imino)methyl)‐2‐methoxyphenol (VF) was used as the capping agent, which could facilitate the self‐healing process of the PU‐D1Q1VF1.
Bibliography:ObjectType-Article-1
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ISSN:1042-7147
1099-1581
DOI:10.1002/pat.6547