论文部分内容阅读
BF3与正丁醇络合物在催化1-癸烯聚合的过程中具有重要的作用, BF3·正丁醇络合物结构随BF3在正丁醇中质量分数的不同而不同.以BF3与正丁醇为原料合成了含有不同w (BF3) 的BF3·正丁醇络合物.采用1H NMR、IR与19F NMR对不同w (BF3) 的BF3·正丁醇络合物的结构进行表征.并对不同w (BF3) 的BF3·正丁醇络合物的催化1-癸烯的聚合性能进行研究.结果表明, 当w (BF3) =5％～33％, 络合物主要是BF3· (n-BuOH) 2, 且其质量分数为9％～89％;w (BF3)>33％, 络合物中产生BF3·n-BuOH, 且w (BF3·nBuOH) 随着w (BF3) 的增加而增加, w (BF3) =45％, w (BF3·n-BuOH) =92％.然而w (BF3) =5％～33％, 络合物无催化活性.w (BF3) =45％, 其1-癸烯聚合转化率为27.32％, 且选择性为11.13％ (二聚体) 、12.08％ (三聚体) 与4.11％ (四聚体), 并确定了BF3·正丁醇络合物中催化1-癸烯聚合的有效催化结构为BF3·n-BuOH, 该研究结果为以BF3·正丁醇络合物为催化剂, 催化1-癸烯聚合合成聚α-烯烃 (PAO) 工业提供理论指导, 为可控工艺提供技术支持.“,”The complexes of BF3 with n-Butanol (n-BuOH) played an important role in catalyzing n-decene polymerization.The structures of BF3·n-BuOH complexes were varied with the mass fraction of BF3 in n-Butanol.In this paper, 1H NMR, IR and 19F NMR were employed to characterize the structures of BF3 complexes.The catalytic performance of BF3·n-BuOH complexes for n-decene polymerization was also studied.The result showed that BF3· (n-BuOH) 2 was the main structure when the mass fraction of BF3 was 5％～33％ and the content of BF3· (n-BuOH) 2 was 9％～89％.Meanwhile, the content of BF3·n-BuOH was increased with the increase of mass fraction of BF3, and the content of BF3·n-BuOH was 92％ when the mass fraction of BF3 was over 45％.However, there was no catalytic activity for BF3·n-BuOH complexes when mass fraction of BF3 was 5％～33％.When the mass fraction of BF3 was 45％, the conversion of n-decene polymerization was 27.32％and the selectivity of product were 11.13％ (dimer), 12.08％ (trimer) and 4.11％ (tetramer).And the effective catalytic structure for the n-decene polymerization by BF3·n-BuOH complexes was determined to be BF3·n-BuOH.The results of this study provided theoretical guidance for the synthesis of PAO industry by using BF3·n-BuOH to catalyze n-decene polymerization and technical support for controllable processes.