摘要
以含甲基的双苯并咪唑和二氟二苯砜为单体,通过N–芳基化反应得到了一种新型的聚芳醚苯并咪唑。以聚芳醚苯并咪唑/1,4–二氧六环为聚合物溶液体系,通过热致相分离法和冷冻干燥技术成功制备了系列低密度（0.10~0.35 g/cm聚芳醚苯并咪唑泡沫材料。该泡沫材料具有优异的热稳定性和较高的玻璃化转变温度。另外,通过对聚合物泡沫材料力学性能的测试可知,该聚芳醚苯并咪唑泡沫材料具有较好的力学性能。
Using the methyl-containing bis-benzimidazole and difluoro diphenyl sulfone as monomers, a novel poly（arylene ether benzimidazole） was obtained through N-arylation reaction. Using poly（arylene ether benzimidazole）/1,4-dioxane as the polymer solution system, a series of poly（arylene ether benzimidazole） foam materials with low density （0.10~0.35 g/cm~） were prepared successfully through the thermal induced phase separation method and freeze drying process. The foam materials possess excellent thermal stability and higher glass transition temperature. In addition, the poly（arylene ether benzimidazole） foam materials possess better mechanical performance known by the mechanical tgerformance testing of polymer foam materials.
出处
《化学推进剂与高分子材料》
CAS
2015年第1期75-78,共4页
Chemical Propellants & Polymeric Materials
基金
国家自然科学青年基金(No.21202134)资助
关键词
泡沫
聚芳醚苯并咪唑
低密度
热稳定性
力学性能
foam
poly（arylene ether benzimidazole）
low density
thermal stability
mechanical performance
