支化聚乙烯的合成及结构与性能OA北大核心CSCDCSTPCD
Synthesis of Branched Polyethylene and Characterization of Their Structures and Properties
以[ArN=C(An)-C(An)=NAr] NiBr2[An=acenaphthyl,Ar=2,6-C6H3(iPr)2]为主催化剂,以改性甲基铝氧烷(MMAO)和常规的甲基铝氧烷(MAO)为助催化剂,研究了压力、温度和时间等条件对乙烯聚合制备支化聚乙烯的影响,采用高温核磁、高温凝胶渗透色谱(GPC)及差示扫描量热仪(DSC)等对所得的聚乙烯结构进行表征.研究发现,以MMAO为助催化剂时,催化活性比以MAO为助催化剂时高约1个数量级,达到107…查看全部>>
The branched polyethylene (br-PE) were synthesized by [ArN =C (An)-C (An) =NAr] NiBr2 [An =acenaphthyl,Ar =2,6-C6 H3 (iPr) 2 】 in the presence of the modified methylaluminoxane (MMAO) and methylaluminoxane(MAO).The effects of experimental conditions in which ethylene pressure,temperature and time were varied on ethylene polymerization were investigated.The structures of the obtained polyethylene were characterized by high-temperature NMR,high-temperature GPC…查看全部>>
张丹枫;樊帅;伏艳;李森
华东理工大学材料科学与工程学院,上海市先进聚合物材料重点实验室,上海200237华东理工大学材料科学与工程学院,上海市先进聚合物材料重点实验室,上海200237华东理工大学材料科学与工程学院,上海市先进聚合物材料重点实验室,上海200237华东理工大学材料科学与工程学院,上海市先进聚合物材料重点实验室,上海200237
化学化工
后过渡金属催化剂α-二亚胺合镍配合物乙烯聚合支化聚乙烯
Late transition metal catalyst α-Diimine nickel complex Ethylene polymerization Branched polyethylene
《高等学校化学学报》 2013 (8)
2005-2010,6
上海市重点学科和重点实验室项目(批准号:B502,08DZ2230500)资助.
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