摘要
以乙二胺(EDA)为引发核,通过发散法合成1.0～3.0代树枝状聚合物聚酰胺-胺(PAMAM),并以其作为功能涂覆层制备聚酰亚胺(PI)/PAMAM复合膜,考察PAMAM代数对纯CO2、N2及CH4在复合膜中渗透及CO2/N2、CO2/CH4分离性能的影响.结果表明:PAMAM对CO2有明显的选择透过能力,PI/PAMAM复合膜对纯CO2的透过系数及CO2/N2、CO2/CH4的分离系数随PAMAM代数的增加而增大;当涂覆层为3.0代PA-MAM时,复合膜对CO2的渗透系数达到106.6 Barrer,CO2/N2、CO2/CH4分离系数分别达到44.25和58.83.
The 1.0-3.0 generation of dendrimers polyamide-amine （PAMAM） are synthesized through divergent methods with ethylenediamine （EDA） as the initiator core. The PAMAM are casted on the surface of polyimide （PI） membrane as a positive layer to prepare CO2 facilitated transport PI/PAMAM composite membrane. The generation effect of PAMAM on pure CO2, CH4 and N2 permeability and the separation factor of CO2/N2, CO2/CH4 are also studied. The results show that： PAMAM could enhance the perm-selectivity of CO2 apparently and the separation factors of CO2/N2, CO2/CH4 increase with the increasing generation of PAMAM; when the coating layer of PAMAM reaches 3.0 generation, the permeability coefficient of CO2 in the composite membrane is 106.6 Barter, while the separation factors of COg/N2, CO2/CH4 reach 44.25 and 58.83, respectively.
出处
《天津工业大学学报》
CAS
北大核心
2011年第6期1-4,共4页
Journal of Tiangong University
基金
教育部创新团队项目基金资助(IRT0759)
中央高校基本科研业务费专项资金资助(27R0904077A)
山东省自然科学基金项目(ZR2010BQ026)
青岛市科技计划基础研究项目(10-3-4-13-2-jch)
