A New Silicon-Containing Bis(cyanate) Ester Resin with Improved Thermal Oxidation and Moisture Resistance

Abstract

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Synthesis and properties of silicon‐containing bismaleimide resins

“…[1][2][3] Typical examples of such polymers include polyamides, 4 polyesters, 5 polyimides, 6 polyoxadiazoles, 7 polysulfones and polyketones, 8 epoxy resins, 9 and cyanate ester resins. 2 All of these polymers show improved processability and thermal stability and are promising candidates for wide applications ranging from aerospace to electronics. Introduction of silicon atoms into bismaleimide (BMI) resins may lead to a new type of highperformance polymeric materials.…”

Cyanate ester tethered POSS/BACY nanocomposites for low-k dielectrics

“…Then, the temperature was slowly raised to room temperature and stirred for 1 h. The reaction mixture was filtered, and the filtrate was poured into cold water and extracted with dichloromethane, and then the organic portion was concentrated and dried to obtain the product (yield 92%, light brown semi-solid). Synthesis of bisphenol-A cyanate ester (BACY) monomer as per earlier reported procedure, [1,2] the bisphenol-A was dissolved in dry acetone as solvent under nitrogen atmosphere obtained a clear solution, and after then, a clear solution of cyanogen bromide in acetone was added, followed by the slow addition of triethyl amine at À15°C. After completion of the reaction, the temperature was slowly raised to room temperature and stirred for 1 h. The reaction mixture was filleted, and then the filtrate was poured into cold water to obtain pale yellow precipitate which was filtered and washed several times with water and dried at 50°C for 12 h (92% yield, pale yellow solid).…”

“…Besides the cyanate ester-based thermosetting, polymers possess outstanding resistance to fire and moisture, good strength at elevated temperature, corrosion resistance, and excellent electrical properties. [1][2][3] Eugenol, a phenol that comprises approximately 80% of clove oil, embodies this class of renewable phenols. [2] The terminal olefin and phenolic hydroxyl group provide a synthetic handle for chemical modification, whereas the aliphatic chain and methoxy group have a great impact on the physical properties of polymers derived from eugenol.…”

“…[1][2][3] Eugenol, a phenol that comprises approximately 80% of clove oil, embodies this class of renewable phenols. [2] The terminal olefin and phenolic hydroxyl group provide a synthetic handle for chemical modification, whereas the aliphatic chain and methoxy group have a great impact on the physical properties of polymers derived from eugenol. [2] The allylic double bond of eugenol can be used to link with inorganic fillers such as POSS through Michael addition reaction [4] to enhance the physical and chemical properties of eugenol.…”

“…[2] The terminal olefin and phenolic hydroxyl group provide a synthetic handle for chemical modification, whereas the aliphatic chain and methoxy group have a great impact on the physical properties of polymers derived from eugenol. [2] The allylic double bond of eugenol can be used to link with inorganic fillers such as POSS through Michael addition reaction [4] to enhance the physical and chemical properties of eugenol. Because the POSS is one of the excellent nanoporous inorganic materials which can be modified with organic functionalities through chemical linkages and that can be utilized to prepare high-performance polymer nanocomposites.…”