發明
中華民國
102110319
I 462910
含雙酚基之氧代氮代苯并環己烷、其製備方法及固化物之製備方法BENZOXAZINE WITH TWO PHENOLIC GROUPES, PREPARING METHOD THEREOF AND PREPARING METHOD FOR RESIN USING THE SAME
國立中興大學
2014/12/01
2. 以傳統法無法製備出含OH官能基的benzoxazine,在改用三步法後已成功地合成出來,方法是利用4-aminophenol以及5,5’-methylenebis(2-hydroxybenzaldehyde)進行縮合反應,並以NaBH4還原imine後,進行縮合閉環。而原料 5,5’-methylene-bis(2-hydroxybenzaldehyde)是 2-hydroxybenzaldehyde與s-trioxane在硫酸環境下反應得到。 pOH-Bz與F-a(以bisphenol A/aniline/formaldehyde合成的 Benzoxazine)結構相似均含有兩個OH基,我們可以利用OH基為 反應點去和epoxy以及 1,1’-(methylenedi-p-phenylene)bismaleimide(DDM-BMI)進行反應。 本論文將會以F-ap/epoxy、F-a/epoxy、F-ap/DDM-BMI、 F-a/DDM-BMI一系列系統進行比較討論。 2. Phenolic OH-containing benzoxazine (F-ap), which cannot be easily prepared by traditional procedures, have successfully been prepared. F-ap was prepared from the condensation of 4-aminophenol and 5,5'-methylenebis(2-hydroxybenzaldehyde), reducing the resulting imine linkage by NaBH4, and ring closure condensation. The key starting material, 5,5'-methylenebis(2-hydroxybenzaldehyde), was prepared from 2-hydroxybenzodehyde and s-trioxane in the presence of sulfuric acid. F-ap is structurally similar to bis(3,4-dihydro-2H-3-phenyl-1,3-benzoxazinyl)methane (F-a, a benzoxizne based on bisphenol F/aniline/formaldehyde) except for the two phenolic OHs. The phenolic OHs can provide a reaction site with epoxy and 1,1'-(methylenedi-p-phenylene)bismaleimide (DDM-BMI). The structure-property relationships between F-ap/epoxy, F-a/epoxy, F-ap/DDM-BMI, F-a/DDM-BMI copolymers were discussed.
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