【摘要】 以1-萘酚和二环戊二烯(DCPD)为主要原料合成了一种新型含萘环和二环戊二烯环结构的环氧树脂.其结构通过傅里叶变换红外光谱(FTIR)、核磁共振波谱(NMR)、质谱(MS)和凝胶渗透色谱(GPC)表征确定,环氧值经盐酸-丙酮法测定为0.351.同4,4-二氨基二苯基砜(DDS)固化后所得固化产物的物理性能用动态热机械分析(DMTA)和热重分析(TGA)进行了表征.研究结果表明,固化产物具有高的玻璃化转变温度(tg=236.2℃)和热稳定性.由于憎水性的萘环结构和环戊二烯环的引入,固化产物也表现出良好的耐水性.更多还原

【Abstract】 A new epoxy resin containing both naphthalene and dicyclopentadiene(DCPD) group was synthesized using 1-naphthol and DCPD as starting materials.Its chemical structures were characterized with FTIR spectroscopy,NMR,MS,and GPC analyses.The epoxy value determined by HCl/acetone titration was 0.351.The physical properties of the resulting polymers cured with 4,4-diaminodiphenylsulfone were evaluated with dynamic mechanical thermal analyses(DMTA) and thermogravimetric analyses(TGA).The cured polymer showed great improvement in heat resistant properties including remarkably higher glass transition temperature(tg=236.2 ℃) and thermal stability.The polymer also had better moisture resistance because of the hydrophobic nature of DCPD and naphthyl groups.更多还原