CAJ | 학술논문

要:?综述了带有芳氧基亚胺配体的ⅣB族金属络合物(FI催化剂)催化的乙烯类共聚合.Ti-FI催化剂可用于乙烯与α-烯烃、乙烯与环烯烃的共聚合.相比传统的茂金属催化剂,FI催化剂可以制备共聚单体含量更高的共聚物.FI催化剂对极性基团具有良好的耐受性,将其用于乙烯与极性单体的共聚合,可取得理想的效果.与亚胺N原子相连的芳香环上的邻位H原子被F原子所取代的Ti-FI催化剂催化乙烯类聚合时,表现出活性聚合的特征.因此可通过控制单体加入顺序制备嵌段共聚物.用两种不同的FI催化剂,且以二乙基锌为链穿梭剂,可制备多嵌段共聚物.优化配体结构可制备高效的乙烯类共聚合催化剂.这些将有利于实现聚烯烃的功能化和高性能化.
요:?종술료대유방양기아알배체적ⅣB족금속락합물(FI최화제)최화적을희류공취합.Ti-FI최화제가용우을희여α-희경、을희여배희경적공취합.상비전통적무금속최화제,FI최화제가이제비공취단체함량경고적공취물.FI최화제대겁성기단구유량호적내수성,장기용우을희여겁성단체적공취합,가취득이상적효과.여아알N원자상련적방향배상적린위H원자피F원자소취대적Ti-FI최화제최화을희류취합시,표현출활성취합적특정.인차가통과공제단체가입순서제비감단공취물.용량충불동적FI최화제,차이이을기자위련천사제,가제비다감단공취물.우화배체결구가제비고효적을희류공취합최화제.저사장유리우실현취희경적공능화화고성능화.
@@@@This?article?reviewed?the?application?of?group?Ⅳ?metal?complexes?bearing?phenoxy-imine?ligand?(FI?catalyst)?to?ethylene?copolymerization.?The?Ti-FI?catalysts?could?be?applied?to?the?copolymerization?of?ethylene?and?α-olefin,?ethylene?and?cycloolefin.?Compared?with?traditional?metallocene?catalysts,?the?Ti-FI?catalysts?can?produce?copolymers?with?much?more?content?of?comonomers.?FI?catalysts?can?be?used?to?the?copolymerization?of?ethylene?and?polar?comonomer?with?satisfactory?results?because?of?their?good?tolerance?of?polar?function?group.?With?ortho-F?atom?on?N-aromatic?ring,?the?Ti-FI?catalyst?can?show?a?performance?of?living?polymerization.?Therefore,?block?copolymers?can?be?obtained?by?controlling?sequences?of?adding?monomers.?The?multi-block?copolymers?were?obtained?by?employing?FI?catalyst?with?metallocene?at?the?same?time?in?the?presence?of?diethyl?zinc?as?a?chain?shuttling?reagent.?High?efficient?catalysts?for?ethylene?copolymerization?can?be?synthesized?through?optimizing?the?structure?of?ligands.?These?can?make?great?contribution?to?the?functionalization?and?high?performance?of?polyolefins.