聚氨酯-铬(Ⅲ)络合物的合成与表征  

Synthesis and Characterization of a New Polyurethane-chromium (Ⅲ) Complex

作　　者：殷守华[1] 章于川[1] 曾俊 柴大付[1] 乔恒婷[1] 

机构地区：[1]安徽大学化学化工学院安徽省绿色高分子重点实验室,合肥230039 [2]合肥安科精细化工有限公司,230088

出　　处：《聚氨酯工业》2007年第4期12-15,45,共5页Polyurethane Industry

基　　金：安徽教育厅自然科学基金重点项目2003KJ004Zd

摘　　要：以甲苯-2,4-二异氰酸酯(TDI)和酒石酸(TA)为原料合成了NCO基封端的预聚体,用聚乙二醇(PEG400)进行扩链反应,合成了水溶性较好的聚氨酯配体,再与Cr(Ⅲ)络合,制备了聚氨酯-铬(Ⅲ)络合物。讨论了反应时间、反应温度等对聚氨酯配体合成反应的影响。结果表明,预聚和扩链阶段的最佳反应温度和时间分别为60℃、1h和75℃、3h。FTIR、DSC、TGA和NMR等表征结果表明,所得的聚氨酯配体及其铬(Ⅲ)络合物为目标产物。A aqueous polyurethane ligand was obtained from a pre-polymer based on tolylene diisocyanate （TDI）, tartaric acid （TA） and chain extender polyethylene glycols 400 （PEG400）, and then a polyurethane-chro- mium （ Ⅲ ） complex was prepared by the polyurethane ligand coordinating with chromium （ Ⅲ ）. The effects of sev- eral factors on preparation of the polyurethane ligand, such as reaction time and temperature were discussed. The temperature and time of pre-polymerization and chain extending reaction were determined as 60℃, l h and 75℃ 3h. The polyurethane ligand and its chromium（Ⅲ） complex were characterized by FTIR, DSC,TGA and NMR.

关 键 词：聚氨酯配体 聚氨酯-铬(Ⅲ)络合物 合成 表征 

分 类 号：X794[环境科学与工程—环境工程]