Issue 7, 2018

High performance low dielectric polysiloxanes with high thermostability and low water uptake

Abstract

Two novel low dielectric polysiloxanes with high thermostability and low water uptake were developed. These polymers were formed via a thermo-crosslinking reaction of two BCB-containing organosiloxanes. They exhibited dielectric constants (Dk) of less than 2.60 for frequencies ranging from 0.15 to 30.0 MHz, and good thermostability with a 5% weight loss temperature of up to 460 °C. In particular, the polymer derived from a monomer containing three BCB units displayed a Tg of 350 °C. These polymers exhibited water uptakes of less than 0.20% when they were immersed in boiling water for 72 h. These data reflect that these polysiloxanes are suitable as high performance low dielectric resins in the microelectronics industry.

Graphical abstract: High performance low dielectric polysiloxanes with high thermostability and low water uptake

Supplementary files

Article information

Article type
Research Article
Submitted
13 mars 2018
Accepted
24 mai 2018
First published
24 mai 2018

Mater. Chem. Front., 2018,2, 1397-1402

High performance low dielectric polysiloxanes with high thermostability and low water uptake

X. Chen, J. Wang, J. Sun and Q. Fang, Mater. Chem. Front., 2018, 2, 1397 DOI: 10.1039/C8QM00104A

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