A new type of unsaturated polyester resin with low dielectric constant and high thermostability: Preparation and properties

Xingpeng Chen, Kai Li, Shijun Zheng, Qiang Fang

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

A new type of unsaturated polyester resins (UP) with low dielectric constant (κ) and high thermostability was prepared by doping N-phenylmaleimides containing perfluoroalkyl substituents (-CF3 and -C6F13) into a commercial unsaturated polyester resin. In comparison with neat UP resin, the doped UP resins showed decreased dielectric constant and increased char yields. The best result was obtained when the substituent was -CF3, which gave a dielectric constant of 3.63 and 5 wt%, loss temperature of 336 °C with a char yield of 5.57% under N 2. Such data are superior to those of neat UP resin, which showed dielectric constants of 4.38 and 5 wt%, a loss temperature of 327 °C with a char yield of 2.25%. In this contribution, a new environmentally-friendly procedure for the synthesis of the fluoro-containing maleimides was also provided, in which a Bronsted acidic room temperature ionic liquid was employed as a catalyst and the products were obtained through merely decanting and removal of the solvent.

Original languageEnglish
Pages (from-to)6504-6508
Number of pages5
JournalRSC Advances
Volume2
Issue number16
DOIs
StatePublished - Aug 14 2012
Externally publishedYes

Fingerprint

Dive into the research topics of 'A new type of unsaturated polyester resin with low dielectric constant and high thermostability: Preparation and properties'. Together they form a unique fingerprint.

Cite this