Synthesis and Properties of Novel Cyanate Ester Containing Siloxane and Imide Groups

• Main Authors: Hung-Min Shih, 施宏旻
• Other Authors: Mu-Shih Lin
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/80807940868800163038

碩士 === 國立交通大學 === 應用化學系所 === 94 === Cyanate ester containing siloxane and imide groups were synthesized. Various equivalent ratios of Epon828/cyanate ester for 1/1, 1/0.8, 1/0.6 and 1/0.4 were mixed and cured to give four cross-linked materials. Curing behavior was studied by dynamic DSC and FT-IR. Thermal mechanical properties were measured with TGA, TMA and DMA. Experimental evidence as investigated by dynamic DSC and FT-IR shows that curing reaction between epoxy and cyanate ester results in the production of oxazolidinone. The cured materials not only showed good Tg and thermal stability but also were toughened by siloxane group. TMA analyses showed that Epon828/cyanate ester = 1/1 had lower CTE and good dimension stability. In addition, the cured materials with dielectric constant of 3.7-4.0 were lower than those of general epoxy resin with 4.6.