检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:刘金刚[1] 赵晓娟[1] 杨海霞[1] 石津旗[1]
机构地区:[1]中国科学院化学研究所高技术材料实验室,北京100080
出 处:《热固性树脂》2006年第3期5-8,共4页Thermosetting Resin
基 金:国家自然科学基金资助项目(50403025)
摘 要:以溴丙烯和芳香族二酚为原料,通过缩合、重排2步反应制备了一系列烯丙基二酚化合物。以所合成的烯丙基二酚为原料,进一步与4-溴硝基苯,通过Williamson反应和还原反应制备了一系列新型烯丙基取代二胺单体。以2,2-双[4′-(4″-氨基苯氧基)-3′-烯丙基苯基]丙烷(APAP)为例,研究了其对环氧树脂以及双马来酰亚胺树脂的固化行为。结果表明,这类二胺固化剂对于上述树脂体系均具有良好的固化效果,固化物具有良好的耐热性能以及耐溶剂稳定性。A series of allyl bisphenol compounds had been synthesized via the condensation reaction of allyl bromide and aromatic diphenols, followed by thermally rearrangement reaction. Novel allyl - containing diamine curing agents were developed by the Williamson's reaction of the obtained allyl bisphenol compounds and 4 - bromo- 1 - nitrobenzene, followed by reduction reactions. The curing properties of the new curing agent, 2, 2- bis [4'- (4'-aminophenoxy) -3'-allylphenyl] propane(APAP) to epoxy and bismaleimides were researched. It was shown that the curing agent exhibited good curing effect to the resins, the curing reactions of APAP- BMDM and APAP- DGEBA were taken place over a wide range of temperature, their temperature at exothermal peak were 256.2 and 190.7 degrees respectively, the glass transition temperature of cured APAP- DGEBA was 154.4 degrees but there was not occured the glass state transition for the cured APAP- BMDM in test conditions and the curing resin showed good thermal stability and solvent - resistance, such that the starting decomposition temperature of APAP- BMDM cured and the carbon residue in 700 degrees were 426.8 degrees and 46.5 percent and were increased with 52.6 degrees and 23.4 percent respectivelly more than that of APAP - DGEBA cured and the two thermosets were hardly dissoved in common solvents such as NMP DMF DMAc phenol solvent and strong basic (30% NaOH), strong acid (concentrated sulfuric acid) solutions.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.104