Polyphenylene ether resin and manufacturing method thereof, polyphenylene ether prepolymer and resin composition
一种聚苯醚树脂、树脂组成物的技术,应用在聚苯醚树脂领域,能够解决使用限制、阻燃性、耐热性介电常数、介电损耗韧性、反应性、黏度及溶解性特性无法令人满意等问题
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[0119] The thermosetting polyphenylene ether resin preparation (I) of manufacturing example polymerization modification
[0120] Mix 400 grams (0.2mol) of SA-90 (purchased from Sabic) with 17.5 grams (0.1mol) of α, α'-dichloro-p-xylene and 33.9 grams (0.01mol) of tetrabutylphosphine bromide and 600 Add one gram of toluene into the stirring tank, heat to 75°C and stir to dissolve until evenly mixed. After the temperature was raised to 95° C., 45 g (1.125 mol) of NaOH and 33 g of deionized water were added, and the stirring was continued for 6 hours. After cooling to 70° C., 53.4 g (0.35 mol) of p-chloromethylstyrene (CMS-P) was added, and stirring was continued for 4 hours. After reacting for 4 hours, it was cooled to room temperature for neutralization, and 8.8 grams (0.09 mol) of phosphoric acid and 165 grams of deionized water were added. Let stand and divide into upper and lower layers. Add 330 grams of deionized water for stirring, and remove the waste liquid three time...
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