精细石油化工
精細石油化工
정세석유화공
SPECIALITY PETROCHEMICALS
2009年
5期
55-58
,共4页
郭利兵%李江涛%杨振强%韩兆海
郭利兵%李江濤%楊振彊%韓兆海
곽리병%리강도%양진강%한조해
茂金属催化剂%茂锆化合物%均相催化%烯烃聚合
茂金屬催化劑%茂鋯化閤物%均相催化%烯烴聚閤
무금속최화제%무고화합물%균상최화%희경취합
metallocene catalyst%zirconocene%homogeneous catalysis%olefin polymerization
实验以芴基锂、二氯二甲基硅烷和环戊二烯基钠为原料,在四氢呋喃溶剂中合成了茂锆催化剂[(C_(13)H_8)Si(CH_3)_2(C_5H_5)]ZrCl_2,总收率51%.经核磁共振氢谱和碳谱分析,确定了化合物的结构.经甲基铝氧烷活化,该化合物催化乙烯、丙烯共聚反应显示出较高的催化活性,其催化活性(每1 mol Zr)常压下可以达到10~3g/h,聚合物的相对分子质量约1.0×10~4.
實驗以芴基鋰、二氯二甲基硅烷和環戊二烯基鈉為原料,在四氫呋喃溶劑中閤成瞭茂鋯催化劑[(C_(13)H_8)Si(CH_3)_2(C_5H_5)]ZrCl_2,總收率51%.經覈磁共振氫譜和碳譜分析,確定瞭化閤物的結構.經甲基鋁氧烷活化,該化閤物催化乙烯、丙烯共聚反應顯示齣較高的催化活性,其催化活性(每1 mol Zr)常壓下可以達到10~3g/h,聚閤物的相對分子質量約1.0×10~4.
실험이물기리、이록이갑기규완화배무이희기납위원료,재사경부남용제중합성료무고최화제[(C_(13)H_8)Si(CH_3)_2(C_5H_5)]ZrCl_2,총수솔51%.경핵자공진경보화탄보분석,학정료화합물적결구.경갑기려양완활화,해화합물최화을희、병희공취반응현시출교고적최화활성,기최화활성(매1 mol Zr)상압하가이체도10~3g/h,취합물적상대분자질량약1.0×10~4.
[(C_(13)H_8)Si(CH_3)_2(C_5H_5)]was prepared with fluorenyl lithium,dimethyldichlorosilane and cyclopentadienylsodium with 51% total yield.Furthermore,a Si-bridged fluorenylidene cyclopentadienylidene zirconium complex[(C_(13)H_8)Si(CH_3)_2(C_5H_5)]ZrCl_2 was synthesized by reaction of E(C_(13)H_8)Si(CH_3)_2(C_5H_5)]and ZnCl_4 with THF as a solvent under the Schlenk system.The reaction gave the target compound in 86% yield.The zirconium complex was characterized by ~1H NMR and ~(13)C NMR.After activated with methylaluminoxane,the metallocene complex showed a high catalytic activity for the ethylene and propylene polymerization reaction under atmosphere pressure.It was found that the title compound has a catalytic activity in the order of 10~3g/h,and the molecular weight of ethylene-propylene copolymers is about 10~4.
