探讨了茂金属催化剂Cpt2MCl2(CPt=tBuC5H4,M=Ti,zr,Hf)的合成以及用于聚合丁烯-1的研究,研究了几种不同的茂金属催化剂和不同聚合条件下的催化行为,并通过IR、1H NMR、EI-MS、DSC、粘度法测分子量和正庚烷抽提等测试手段对催化剂和聚合物进行了表征.结果表明,叔丁基取代的茂金属催化剂催化丁烯-1聚合具有较高的催化活性,叔丁基的引入提高了聚合物的等规度和分子量.
The synthesis and characterization of metallocene complexes Cpt2MC12[Cpt=tBuC5H4,M=Ti(Ⅰ), Zr(Ⅱ), Hr(Ⅲ)] are presented in catalyzation polymerization of butene-1. The metallocenecatalysts and polybutenes have been characterized by IR, 1H NMR and EI-MS spectra and DSCmeasurements. The catalytic features for butene-1 polymerization were studied under differentconditions. The results showed that Cpt2MCl2/MAO had high activity for butene-1 polymerization,improving the tacticity and molecular weight of the polymers obtained.
参考文献
[1] | Sinn H,Kaminsky W,Voller H J, et al. Angew Chem, Int Ed Engl, 1980,19: 330 |
[2] | a.Brintzinger H H,Fisher D,Muelhaupt R, et al.Angew Chem Int Ed,Engl, 1995,34:1143 |
[3] | CHEN Guan-Rong (陈冠荣)Chief-Ed (主编).Encyclopedia of Chemical Engineering (化工百科全书),Vol. 9(第9卷).Beijing (北京):Chemical Industry Press (化学工业出版社),1990:378 |
[4] | a.Busico V, Cprradini P, Biasio R. Makromol Chem, 1992, 193: 897 |
[5] | Resconi L,Piomontes F,Franciscono G, et al. J Am Chen Soc,1992,114:1025 |
[6] | Resconi L, Abis L, Franciscono G. Macromolecules, 1992,25: 6814 |
[7] | Riemschneider R,Nehring R. Substitutionsprodukte des Cyclopentadiens, 3. Mitt: tert-Butylcyclopentadien,Monatschefte Fuer Chemie. 1959,90:568 |
[8] | b.Kaminsky W. J Chem Soc,Dalton Trans,1998:1413 |
[9] | b.Diao J,Wu Q,Lin S. J Polym Sci,Part A,Polym Chem,1993,31(9) :2287 |
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