生物基低k高频聚合物来源于甲醇:合成和结构和特性之间的关系
Fengping Liu1, Minghui Li1, Jing Sun1
1Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China.
Biomacromolecules
|August 21, 2023
概括
来自乙醇的新生物基聚合物具有出色的低介电性质和增强的疏水性. 这些可持续材料对电子领域的高频通信应用具有前景.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续材料 可持续材料
背景情况:
- 生物基聚合物正在探索可持续的低介电性 (低k) 材料.
- 实现高频应用的综合性质仍然是一个挑战.
研究的目的:
- 设计和合成来自生物质的新型化单体.
- 开发具有增强热稳定性,疏水性和介电性质的低k聚合物.
- 研究这些基于乙醇的聚合物的结构-性质关系.
主要方法:
- 从乙醇中合成化单体 (BCB-F,2BCB-F) 和从中合成控制单体 (C1).
- 合成的单体的热固化.
- 介电性质的表征 (介电常数Dk,介电损失Df) 在10 GHz.
- 评估疏水性质 (吸水) 和热性质 (玻璃过渡温度Tg,热膨胀系数CTE).
主要成果:
- 治愈后的BCB-F表现出2.62的Dk,1.31 × 10-3的Df和0.18%的吸水率,在沸水中保持了96小时后的介电性质.
- 治愈后的2BCB-F显示出优异的耐热性,Tg为408°C,CTE为52ppm/°C,除了介电性质为2.61和2.60×10−3外.
- 控制单体C1有助于阐明结构与属性关系.
结论:
- 基于乙醇的化聚合物显示出有希望的低介电性能和疏水性.
- 开发的聚合物具有出色的热稳定性和介电性质.
- 这些材料是适合用于电子和微电子行业的矩阵或封装树脂的候选材料.
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