摘要
通过苯酚,甲醛,苯胺的曼尼希反应及产物的环氧化反应,得到了含一个环氧基团和二至三个亚氨基团的新型超支化单体。通过超支化单体中亚氨基和环氧基团之间的开环反应,得到了重均分子量为13900的超支化高分子。通过IR,1H-NMR和GPC等方法对产物进行了表征。并采用DSC对合成的超支化高分子固化环氧树脂的行为进行了初步探索。
A novel aromatic hyperbranched polyimine was synthesized by the Mannich reaction of phenol, formaldehyde and aniline, the epoxidation of the Mannich reaction products and the ring-opening reaction between epoxy group and imino group in the synthesized monomer. The chemical structures of the Mannich reaction product, epoxidized monomer were characterized by IR, ()~1H-NMR. The molecule weight of the hyperbranched polymer was determined by GPC. The synthesized hyperbranched polymer can be used as a curing agent of AG80 epoxy resin. The cure behavior was studied by DSC. The DSC curves show that comparing with DDS, the synthesized hyperbranched polymer has lower initial exothermal temperature.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2004年第6期90-93,共4页
Polymer Materials Science & Engineering
基金
航空基础科学基金(98G51080)
高等学校博士点专项科研基金(98000601)联合资助
