摘要
丁二烯聚合铁系催化剂FeCl_3-Phen-Al(i-Bu)_3的磁化率和紫外可见光谱测定结果表明,三氯化铁与乙酸乙酯(EA)形成高自旋络合物FeCl_3·(EA)_2;FeCl_3·(EA)_2-Al(i-Bu)_3体系显强铁磁性;Phen有稳定Fe(Ⅱ)、显著降低铁磁性的作用。
An iron-catalyst system FeCl_3-Phen-Al(i-Bu)_3 fos butadiene polymerization has beenstudied. The results of magnetic susceptibility and UV-Vis spectra measurements indicatedthat a high-spin complex FeCl_3·(EA)_2 was formed from FeCl_3 and ethyl acetate(EA). Thepresence of o-phenanthroline(Phen) stabilizes Fe(Ⅱ),markedly reducing the ferromagnetismof the catalyst system.
出处
《应用化学》
CAS
CSCD
北大核心
1990年第6期19-22,共4页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金
关键词
丁二烯
聚合
铁系催化剂
磁性分析
butadiene
polymerization
iron catalyst
magnetic analysis
