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1、石油化工2011年第40卷第4期PETR0CHEMICALTECHN0L0GY·457-多孔材料負(fù)載烯烴配位聚合催化劑的研究進(jìn)展王佳,張瑛,張鵬飛,賀颯颯,葛超,竇濤。(1.太原理工大學(xué)精細(xì)化工研究所,山西太原030024;2.中國(guó)石油大學(xué)(北京)理學(xué)院材料科學(xué)與工程系,北京102249;3.中閏石油大學(xué)(北京)化工學(xué)院CNPC催化重點(diǎn)實(shí)驗(yàn)室,北京102249)摘要]綜述了,將均相烯烴配f聚合催化劑(即Ziegler—Natta催化劑、茂金屬僻化劑和后過(guò)渡金屬催化劑)負(fù)載于具有不同L結(jié)構(gòu)與孔徑的多孔材
2、料(如SiO、分f篩等)上進(jìn)行烯烽聚合的研究進(jìn)展,分析了載體和催化劑組成塒配位聚合活性及聚合物性能的影響多孔材料不但具有承載活性紺分、改善其分散性的作用,并且其納水空間對(duì)聚合過(guò)程中單體的擴(kuò)散起到限制作用,使單體的插入力‘和鏈增長(zhǎng)過(guò)程與自由空間不同,因此改變了聚合反應(yīng)活性和聚合物的相對(duì)分子質(zhì)量及其分伽、熔點(diǎn)和等規(guī)度等性質(zhì)關(guān)鍵詞]多孔材料;載體;位聚合催化劑;烯烴聚合文章編號(hào):1000—8144(2011)04—0457—07[中圖分類號(hào)一TQ317文獻(xiàn)標(biāo)識(shí)碼]AProgressofCatalystsSu
3、pportedonNanoporousMaterialsforOlefinCoordinationPolymerizationWangJia,ZhangYing,ZhangPeng[ei,HeSasa,GeChao,DouTao(1ResearchInstituteofSpecialChemicals,TaiyuanUniversityofTechnology,TaiyuanShanxi030024,China;2.DepartmentofMaterialsScience&Engineering,Co
4、llegeofScience、ChinaUniversityofPetroleum—Beijing,Beijing102249,China3.CNPCKeyLaboratoryofCatalysis,CollegeofChemic~Engineering,ChinaUniversityofPetroleum—Beijing,Beijing102249,China)[Abstract]ThispaperfocusesonthedevelopmentofZiegler—Nattacatalysts,met
5、allocenecatalystsand1atetransitionmetalcatalystssupportedonnanoporousmaterialssuchasSiOandmolecularsieves,whichwereusedinolefincoordinationpolymerization.Theinfluencesofthevarioussupportsaswellasthecatalystcompositiononthecoordinationpolymerizationandth
6、epolymerpropertieswereanalyzed.Thenanoporousmaterialswithdifferentporestructuresnotonlyplaytheroleofsupportswhichcarrythemetallicactivesitesandchangetheirdispersity,butalsoinfluencetheolefinpolymerizationkinetics,theobtainedpolymertextualparametersandpo
7、lymerpropertiesduetothedifferentmonomerdiffusioninthenanoporespaceandtherebydifferentmonomerinsertionandchaingrowthmanner.Thecloserelationshipbetweentheconfinedspaceprovidedbynanoporoussupports,thecatalystactivityandthepolymerpropertiessuchasmolecularwe
8、ight,meltingpoint,polydispersityindex,stereoregularity,comonomercontentandimprovedmorphologywasdescribedindetail.[Keywords]porousmaterials;support;coordinationpolymerizationcatalyst;olefinpolymerization現(xiàn)代工業(yè)化生產(chǎn)的聚合工藝過(guò)程決定了均相A1,O)和介孑