THE POLYMER SOCIETY OF KOREA

연구논문 초록집

초록 검색

세션명 Graduate Student Oral Session (I) (English)
발표장 제5회장
논문코드 O5-12
발표일 2024-04-3
발표시간 16:00-16:15
논문제목 Fabrication of low-κ liquid crystal polymer films through dual control of fluorine contents  and molecular orientational order
발표자 김백만
발표자 소속 한국과학기술원 (KAIST)
저자 김백만, 윤동기
소속 한국과학기술원 (KAIST)
논문초록 With the rapid progress in 5G/6G communication technology, the demand for fast transmission speed, enhanced capacity, and seamless multi-device connectivity has become significant. Herein, a facile technique to fabricate highly oriented liquid crystalline polymer (LCP) films by judiciously controlling fluorine contents and the degree of orientational order. LCPs with fluorinated additives have garnered attention due to low dielectric properties and reduced moisture absorption compared to polyimide, thereby aiming to minimize signal loss in the high-frequency band. The optimum fluorine content is determined as 2.0 wt %. Excess contents can lead to a deterioration in orientational order and decline in the dielectric properties. Additionally, the rubbing process renders uniaxially aligned molecules through nanogrooves which induce low dielectric loss due to the restricted chain motions upon polymerization.