CAJ | 학술논문

采用相同的工艺，制备了含有不同内给电子体[2-甲基-2-丙基-1,3-二甲氧基丙烷、2,2-二异丁基-1,3-二甲氧基丙烷（BIBIMP）、邻苯二甲酸二异丁酯]以及不含内给电子体的MgCl2负载型Ziegler-Natta催化剂，研究了给电子体结构对催化剂活性的影响以及用该催化剂合成的聚1-丁烯（PB）的等规指数、熔点、相对分子质量及其分布。结果表明：未加入外给电子体时，加入BIBIMP的催化剂活性最高，用其所制PB的等规指数最高，分别为539?g/g和84%；加入氢气可进一步提高催化剂活性和PB等规指数；加入外给电子体后，催化剂的活性均降低，二醚类Z-N催化剂活性降低最多，而使用二异丙基二甲氧基硅烷为外给电子体更有助于提高PB的等规指数。
채용상동적공예，제비료함유불동내급전자체[2-갑기-2-병기-1,3-이갑양기병완、2,2-이이정기-1,3-이갑양기병완（BIBIMP）、린분이갑산이이정지]이급불함내급전자체적MgCl2부재형Ziegler-Natta최화제，연구료급전자체결구대최화제활성적영향이급용해최화제합성적취1-정희（PB）적등규지수、용점、상대분자질량급기분포。결과표명：미가입외급전자체시，가입BIBIMP적최화제활성최고，용기소제PB적등규지수최고，분별위539?g/g화84%；가입경기가진일보제고최화제활성화PB등규지수；가입외급전자체후，최화제적활성균강저，이미류Z-N최화제활성강저최다，이사용이이병기이갑양기규완위외급전자체경유조우제고PB적등규지수。
Four?kinds?of?MgCl2-supported?Ziegler-Natta(Z-N)?catalysts?with?different?internal?elec-tron?donors,?such?as?2-methyl-2-propyl-1,3-dimethoxypropane,?2,2-diisobutyl-1,3-dimethoxypropane (BIBIMP)?and?diisobutyl?phthalate,?and?without?internal?electron?donor?were?prepared?by?using?the?same?process.?The?authors?studied?the?effect?of?structure?of?electron?donors?on?catalytic?activity,?and?the?isotactic-ity,?melting?point,?relative?molecular?mass?and?its?distribution?of?poly(1-butene)(PB)?prepared?with?the?catalyst.The?results?indicate?that?without?adding?external?electron?donor,?the?catalyst?with?BIBIMP?as?inter-nal?electron?donor?has?the?highest?activity(539?g/g)?and?the?PB?prepared?with?the?catalyst?has?the?highest?isotacticity(84%).?The?addition?of?hydrogen?can?further?improve?the?catalytic?activity?and?isotacticity?of?PB.?However,?the?addition?of?external?donors?reduced?the?activity?of?the?catalysts?and?the?catalysts?contain-ing?diether?internal?electron?donors?decreased?most.?The?addition?of?diisopropyldimethoxysilane?as?external?donor?is?of?more?benefit?for?improving?the?isotacticity?of?PB.