Resin composition and product thereof
A technology of resin composition and products, which is applied in the field of resin composition of products, can solve the problems of high heat resistance and low dielectric properties at the same time, and achieve high heat resistance, low dielectric properties and high dimensional stability sexual effect
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preparation example 1
[0127] Preparation Example 1: Synthesis of benzoxazine resin A1 with structure shown in formula (2)
[0128] In a 500ml three-necked flask equipped with a condenser tube and a stirring rod, add 60ml of chloroform, add 0.1 mole (20.02 g) of 4,4'-diaminodiphenyl ether and 0.2 mole (61.68 g) of diallyl at room temperature Based on bisphenol A, after stirring for 30 minutes, add 0.8 mole (24 g) formaldehyde solution dropwise. After the dropwise addition, heat up to 80 to 100°C, keep stirring, keep warm and reflux for 3 to 6 hours, then cool to room temperature, add 0.2 moles (18.62 grams) of aniline, and 0.8 moles (24 grams) of formaldehyde solution was added dropwise again. After the dropwise addition was completed, the temperature was raised to 80 to 100 ° C, and the stirring was continued. Pour the solution into excess anhydrous ether, then wash with 3mol / L NaOH solution and deionized water, remove the anhydrous ether after the oil phase is separated, and obtain a brown viscous...
preparation example 2
[0130] Preparation example 2: Synthetic benzoxazine resin A2 of structure shown in formula (3)
[0131] Except that 0.1 moles (19.83 grams) of 4,4'-diaminodiphenylmethane was used to replace 0.1 moles (20.02 grams) of 4,4'-diaminodiphenyl ether, the remaining steps were the same as in Preparation Example 1, and the synthesized product was the formula (3 ) of the benzoxazine resin with the structure shown, n is an integer from 0 to 10.
preparation example 3
[0132] Preparation Example 3: Synthetic benzoxazine resin A3 of structure shown in formula (4)
[0133] Except using 0.2 moles (11.42 grams) of allylamine to replace 0.2 moles (18.62 grams) of aniline, all the other steps are the same as in Preparation Example 1, the synthetic product is the benzoxazine resin of the structure shown in formula (4), n is 0 to Integer of 10.
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