CAJ | 학술논문

采用9，9-双(甲氧基甲基)芴(BMMF)为内给电子体合成MgCl2/TiCl4/BMMF催化剂，以三乙基铝为助催化剂在无需外给电子体的情况下得到高等规度的聚丙烯.该催化剂具有高活性和高立体定向性，并与以邻苯二甲酸二丁酯(Phthalate)为内给电子体，二苯基二甲氧基硅(DDS)为外给电子体合成的MgCl2/TiCl4/Phthalate-AlEt3/DDS催化剂的性能进行比较，结果表明无外给电子体催化剂具有较高的活性，且聚丙烯的等规度大于95%.研究了聚合温度，铝钛比等聚合条件对催化剂的活性，聚合物的分子量、等规度和熔点的影响，并用13C-NMR对聚合物的序列结构进行了分析.
채용9，9-쌍(갑양기갑기)물(BMMF)위내급전자체합성MgCl2/TiCl4/BMMF최화제，이삼을기려위조최화제재무수외급전자체적정황하득도고등규도적취병희.해최화제구유고활성화고입체정향성，병여이린분이갑산이정지(Phthalate)위내급전자체，이분기이갑양기규(DDS)위외급전자체합성적MgCl2/TiCl4/Phthalate-AlEt3/DDS최화제적성능진행비교，결과표명무외급전자체최화제구유교고적활성，차취병희적등규도대우95%.연구료취합온도，려태비등취합조건대최화제적활성，취합물적분자량、등규도화용점적영향，병용13C-NMR대취합물적서렬결구진행료분석.
The catalyst MgCl2/TiCl4/BMMF-AlEt3 prepared with a novel complex 9,9-bis(methoxymethyl) fluorene(BMMF)as internal donor was applied to propene polymerization without any external donors and the isotacticity of polypropene obtained was over 95%.In comparison with the catalyst MgCl2/TiCl4/Phthalate-AlEt3/DDS,the catalyst of MgCl2/TiCl4/BMMF-AlEt3 showed high activity.The effects of polymerization conditions such as temperature and Al:Ti ratio on the activity of catalyst,on the molecular weight,the isotaticity and the melting point of polypropene were studied.Polypropene was characterized by 13C-NMR spectroscopy and the structure of polypropene was studied.