二茂铁端基修饰的超支化聚(胺-酯)的合成与表征  

Synthesis and Characterization of Ferrocene-containing Hyperbranched Poly(amine-ester)

作　　者：彭磊[1] 肖凤娟[2] 

机构地区：[1]陕西铁路工程职业技术学院道桥工程系,陕西渭南714000 [2]石家庄铁道大学材料与工程学院,河北石家庄050018

出　　处：《精细化工》2013年第8期871-874,891,共5页Fine Chemicals

基　　金：陕西铁路工程职业技术学院2012年科研基金项目计划(2012-01)~~

摘　　要：首先以二乙醇胺和丙烯酸甲酯为原料,通过Michael加成反应制备A2B型前驱单体N,N-二羟乙基-3-氨基丙烯酸甲酯,然后以三羟甲基丙烷为反应中心核,采用有核准一步法合成羟端基超支化聚(胺-酯)(HPAE);最后利用二茂铁甲酸对HPAE进行端基改性,得到了二茂铁端基修饰的超支化聚(胺-酯)(HPAE-Fc)。HPAE-Fc的合成条件:w(催化剂)=2.5%(相对于反应物总质量),反应温度为140℃,反应物投料比n(OH)∶n(二茂铁甲酸)为1∶0.8,反应时间为4 h。采用FTIR、1HNMR、UV-vis、DSC和羟值等手段对HPAE-Fc的结构进行了表征,表明二茂铁基团成功地接枝到了HPAE分子表面,接枝率达70%。Hyperbranched polymer（amine-ester） with terminal alcohol group（HPAE） was synthesized by polycondensation of N, N-diethyol-3-amine-methylpropionate（ prepared by Michael addition reaction of methyl acrylate with diethanolamine） as an A2B-type monomer with trimethylol propane as the core moiety,proceeding in one-step procedure in the melt with p-toluenesulfonic acid as catalyst. Then, it was modified by ferrocenecarboxylic acid to obtain ferrocene-containing hyperbranched poly （amineester）. The following reaction conditions were obtained： reaction time 4 h at temperature 140 ℃, catalyst dosage 2.5% based on the mass of reaction materials, molar feed ratio n （OH） ：n （ferrocenecarboxylic acid） = 1：0. 8. The obtained polymer was characterized by means of IR, ^1HNMR, DSC and grafting ratio. It is shown that ferrocene was successfully grafted onto the HPAE, and the grafting ratio reached 70%.

关 键 词：二茂铁基 超支化聚(胺-酯) 改性 功能材料 

分 类 号：TQ326.6[化学工程—合成树脂塑料工业]