首页|Sustainable, degradable and malleable low-dielectric-constant thermosets derived from biomass for recyclable green electronics

Sustainable, degradable and malleable low-dielectric-constant thermosets derived from biomass for recyclable green electronics

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  • NETL
  • NSTL
  • Elsevier
In view of their excellent thermal and chemical resistance, favorable adhesion properties, high tensile strength, and other advantages, epoxy thermosets have numerous industrial applications such as coating, adhesive, and composite material production. However, bisphenol A (BPA)-based resins, which account for a significant fraction of the above thermosets, adversely affect human health by interfering with the normal functioning of the endocrine system and cannot be easily decomposed and recycled. Herein, degradable and sustainable bio-based epoxy thermosets with crosslinked network structures are prepared by the epoxidation of isosorbide with epichlorohydrin and the curing of the produced isosorbide diglycidyl ether (ISDGE) with cyclic lactones through a cationic ring-opening reaction. The ISDGE thermosets fully decompose into soluble and recyclable products under mildly basic conditions within three days, which is ascribed to the presence of ester moieties within the polymer network structure. Compared to a representative BPA-based epoxy, ISDGE-based thermosets exhibit lower dielectric constants and are more flexible. Moreover, the glass fibers in ISDGE-based prepregs can be fully recovered after on-demand degradation. Thus, our work provides promising eco-friendly alternatives to conventional epoxy thermosets and paves the way for the reduction of plastic waste generation and the development of recyclable green electronics.

Isosorbide-based epoxy networksCyclic lactonesBiomass-derived materialsOn-demand degradable thermosetsLow dielectric constantEco-friendly degradable electronics

Ka Hyun Lim、Soo Jeong Jeong、Ji Won Joo、Churl Seung Lee、Myong Jae Yoo、Kitae Kang、Youngmin Lee、Ho Sun Lim

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Department of Chemical and Biological Engineering, Institute of Advanced Materials and Systems, Sookmyung Women's University, Seoul 04310, Republic of Korea||Green Solution Program, Chemical R&D Center, Samyang Corp., Daejeon 34055, Republic of Korea

Department of Chemical and Biological Engineering, Institute of Advanced Materials and Systems, Sookmyung Women's University, Seoul 04310, Republic of Korea

Nano Convergence Technology Research Center, Korea Electronics Technology Institute, Seongnam-si 13509, Republic of Korea

Electronic Convergence Materials & Device Research Center, Korea Electronics Technology Institute, Seongnam-si 13509, Republic of Korea

Green Solution Program, Chemical R&D Center, Samyang Corp., Daejeon 34055, Republic of Korea

Department of Chemical Engineering, New Mexico Institute of Mining and Technology, Socorro, NM 87801, United States

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2025

10.1016/j.polymdegradstab.2025.111379

Polymer degradation and stability

Polymer degradation and stability

SCI
ISSN：0141-3910
年,卷(期)：2025.239(Sep.)
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