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.
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.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2007年第5期848-852,共5页
Journal of Zhejiang University：Engineering Science
关键词
环氧树脂
耐热
萘酚
二环戊二烯
epoxy resin
heat resistant
naphthol
dicyclopentadiene
