设在慕尼黑的Wacker公司开发出一种新型聚合物分散体，它专门用于满足纸张和包装工业的需求。这种新型乙酸乙烯酯一乙烯基共聚物分散体以品牌Vinnapas EP 441销售，它是一种多用途黏结剂，可以极为方便地使用喷嘴均匀涂敷，结合高凝固...设在慕尼黑的Wacker公司开发出一种新型聚合物分散体，它专门用于满足纸张和包装工业的需求。这种新型乙酸乙烯酯一乙烯基共聚物分散体以品牌Vinnapas EP 441销售，它是一种多用途黏结剂，可以极为方便地使用喷嘴均匀涂敷，结合高凝固速率，加快了工艺生产速率、降低了使用费用。展开更多
To obtain a novel support with practical value for metallocene catalyst(\%η\%\|C\-5H\-5)TiCl\-3(CpTiCl\-3), poly(styrene\|co\|4\|vinylpyridine)/SiO\-2 nanoscale hybrid material(SrP/SiO\-2) was firstly produced as sup...To obtain a novel support with practical value for metallocene catalyst(\%η\%\|C\-5H\-5)TiCl\-3(CpTiCl\-3), poly(styrene\|co\|4\|vinylpyridine)/SiO\-2 nanoscale hybrid material(SrP/SiO\-2) was firstly produced as support. After pretreatment by methylaluminoxane(MAO), the hybrid materials reacted with CpTiCl\-3. The results from SAXS, SEM and TEM indicated the morphology and structure of organic/inorganic hybrid materials, and the size of inorganic particle in hybrid was nanoscale. The results from IR and XPS showed that there were two possible cationic active species in the hybrid\|supported catalyst, the polymerization results of styrene proved this possibility.展开更多
文摘To obtain a novel support with practical value for metallocene catalyst(\%η\%\|C\-5H\-5)TiCl\-3(CpTiCl\-3), poly(styrene\|co\|4\|vinylpyridine)/SiO\-2 nanoscale hybrid material(SrP/SiO\-2) was firstly produced as support. After pretreatment by methylaluminoxane(MAO), the hybrid materials reacted with CpTiCl\-3. The results from SAXS, SEM and TEM indicated the morphology and structure of organic/inorganic hybrid materials, and the size of inorganic particle in hybrid was nanoscale. The results from IR and XPS showed that there were two possible cationic active species in the hybrid\|supported catalyst, the polymerization results of styrene proved this possibility.
