High performance low-k cyanate ester resins with a thermally stable cyclodextrin microsphere

作者：Tang, Yannan; Yuan, Li; Liang, Guozheng; Gu, Aijuan^*

来源：RSC Advances, 2014, 4(31): 16136-16145.

DOI：10.1039/c4ra00750f

• LOW-DIELECTRIC-CONSTANT
• BETA-CYCLODEXTRIN
• MESOPOROUS SILICA
• COMPOSITES
• POLYMER
• TEMPERATURE
• FILMS
• CURE
• NANOCOMPOSITES
• CONDUCTIVITY

A new biomass, cyclodextrin microsphere (M-CDP) with high thermal stability, small size and suitable content of -OH groups was synthesized and was then used to develop high performance low-k cyanate ester (CE) resins. The structure and properties of M-CDP/CE resins were systematically studied. Compared with the CE resin, the M-CDP/CE system has better curing characteristics reflected by significantly decreased curing temperature and reaction enthalpy; moreover, M-CDP/CE resins show stable and lower dielectric constants as well as similar dielectric loss over the whole frequency range tested. The dielectric constant of M-CDP/CE resin with 5 wt% M-CDP is as low as 2.92 at 10(4) Hz. In addition, M-CDP/CE resins with suitable contents of M-CDP have better thermal stability than CE resins. These attractive performances of M-CDP/CE resins are attributed to the different networks induced by the unique structure of M-CDP. This investigation provides a new and easy method to prepare a thermally stable cyclodextrin derivative and corresponding low-k resins based on biomass materials.

• 出版日期2014
• 单位苏州大学