POS7-0534
Tailoring the Dielectric Properties of Thermotropic Liquid Crystalline Polymers through ZIF-8 Incorporation
Topic
S7. Innovations in Polymeric Composites: From Design and Processing to Industrial Applications
When and Where
Oct 1, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Jinkee HONG
Ki Su KIM
Presenter(s)
Seung-Hyeon Lee (Department of Organic Materials Engineering, Chungnam National University)
Co-Author(s)
Abstract
Thermotropic liquid crystalline polymers (TLCPs) are promising substrate materials for high-frequency communication systems owing to their excellent thermal stability and intrinsically low dielectric properties. In this study, porous zeolitic imidazolate framework-8 (ZIF-8) particles were incorporated into a TLCP matrix via melt compounding to develop low-dielectric TLCP composites. The highly porous structure and low-polarity framework of ZIF-8 were expected to reduce dielectric polarization and increase the free-volume fraction within the composites. The effects of ZIF-8 incorporation on the structural, thermal, rheological, mechanical, dielectric, and liquid crystalline properties of the composites were systematically investigated. Particular attention was given to understanding the relationship between interfacial characteristics and dielectric behavior. The incorporation of ZIF-8 influenced the microstructure and dielectric response of the TLCP matrix, demonstrating its potential as an effective low-dielectric filler. These findings suggest that ZIF-8/TLCP composites are promising candidates for advanced electronic packaging and high-frequency substrate applications.
Keywords: TLCP, ZIF-8, Low dielectric materials, Interfacial engineering
Keywords: TLCP, ZIF-8, Low dielectric materials, Interfacial engineering
