机械球磨制备三苯胺基PAF-106s及C2烃吸附性质  

Preparation of Triphenylamine Based PAF-106s via Mechanical Ball Milling and C2 Hydrocarbons Adsorption Property

作　　者：陈潇禄 袁珍闫 仲迎春 任浩[1] CHEN Xiaolu;YUAN Zhenyan;ZHONG Yingchun;REN Hao(State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,2.College of Chemistry,Jilin University,Changchun 130012,China)

机构地区：[1]吉林大学无机合成与制备化学国家重点实验室,长春130012 [2]吉林大学化学学院,长春130012

出　　处：《高等学校化学学报》2022年第3期78-83,共6页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:21975096)资助。

摘　　要：以三苯胺为单体,无水三氯化铁为催化剂,二甲醇缩甲醛为外交联剂,通过机械球磨不同比例的三苯胺、三氯化铁和二甲醇缩甲醛,合成了PAF-106s(PAF-106a~PAF-106c,PAF:porous aromatic framework).红外光谱、元素分析、X射线光电子能谱和固体核磁共振波谱等表征结果证明发生了聚合反应.氮气吸附结果表明,三苯胺、三氯化铁和二甲醇缩甲醛的比例影响PAF-106s的多孔性能.三氯化铁和三苯胺摩尔比从3∶1增加到12∶1时,PAF-106c的BET比表面积从PAF-106a的135 m^(2)/g增加到280 m^(2)/g.引入二甲醇缩甲醛后,PAF-106d~PAF-106g的BET比表面积随三氯化铁和二甲醇缩甲醛摩尔比的增加而逐渐降低.在273和298 K下,测试了PAF-106c的C_(2)烃吸附性能,并采用理想吸附溶液理论计算了C_(2)H_(2)/C_(2)H_(4)和C_(2)H_(6)/C_(2)H_(4)分离比.Using triphenylamine as monomer,FeCl_(3) as catalyst,and formaldehyde dimethyl acetal(FDA)as knitting agent,PAF-106s were prepared by mechanical ball milling different molar ratios of triphenylamine,FeCl_(3) and FDA.Infrared spectroscopy,elemental analysis,X-ray photoelectron spectroscopy,and solid state nuclear magnetic field(NMR)proved that polymerization had taken place.N_(2) adsorption results showed that the ratio of triphenylamine,FeCl_(3) and FDA could affect the porous properties of PAF-106s.When the ratio of FeCl_(3) to tripheny⁃lamine increased from 3∶1 to 12∶1,and the BET specific surface area of PAF-106c increased from 135 m^(2)/g to 280 m^(2)/g.With the introduction of FDA,the BET specific surface area of PAF-106d-PAF-106g decreased with the increase of the ratio of FeCl_(3) and FDA.In addition,the adsorption and separation properties of C_(2) hydrocarbons for PAF-106c were investigated at 273 and 298 K,and the selectivities for C_(2)H_(2)/C_(2)H_(4)and C_(2)H_(6)/C_(2)H_(4) were calculated by ideal adsorbed solution theory(IAST).

关 键 词：有机多孔框架 机械球磨 三苯胺 吸附 

分 类 号：O62[理学—有机化学] O614[理学—化学]