高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (7): 1233.

• 研究论文 • 上一篇    下一篇

烯丙基取代的铁系“茂后”烯烃聚合催化剂的合成及其催化乙烯聚合的研究

刘长坤, 金国新   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:2000-09-11 出版日期:2001-07-24 发布日期:2001-07-24
  • 通讯作者: 金国新(1959年出生),男,研究员,博士生导师,从事茂金属及茂后烯烃聚合催化剂及有机金属含硫族化学研究.
  • 基金资助:

    国家自然科学基金(批准号:29925101);国家重点基础研究专项经费(批准号:19990601)

Allyl Containing Iron Post-Met allocene Catalyst for Ethylene Polymerization

LIU Chang-Kun, JIN Guo-Xin    

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Science, Changchun 130022, China
  • Received:2000-09-11 Online:2001-07-24 Published:2001-07-24

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摘要： 合成了烯丙基取代的含氮中性配体[(p-C3H5)C12H16]2N3C9H9,然后与FeCl2反应合成含烯丙基取代的三齿“茂后”烯烃聚合催化剂[(p-C3H5)(C12H16)]2N3C9H9FeCl2,通过IR,1H NMRNHR,EI-MS对化合物进行了表征.研究了它催化乙烯聚合的能力,这种催化剂与MAO组成的催化体系可在常压下催化乙烯聚合,活性最高达1.9×106gPE/(mol Fe·h).所得聚乙烯粘均分子量在5×104～2.6×105之间.

关键词: &ldquo, 茂后&rdquo, 催化剂, 烯烃取代基, 烯烃聚合, 含氮、铁的三齿配位化合物

Abstract: Tridentate ligand[(2,6-ArN[CDS1]C(Me))2C5H3N](Ar=4-allyl-2,6-( i-Pr)2C6H3)((Ar=4-allyl-2,6-( i-Pr)2C6H3)(4)which contains allyl groups on each aryl ring was ready prepared and reacted with FeCl2·4H2Oto give the precatalyst [(2,6-ArN[CDS1]C(CH3))2C5H3N]. FeCl2(FeCl2(5). Compounds 2-5 were characterized by 1H NMR, EI MS,and IR. The complex 5 which was actived by methylaluminoxane(MAO) exhibits high activity for ethylene polymerization[1.9×106 g pE·(mol Fe·h)-1 at 0℃]. It was showed that the activity was decreased with increasing temperature and the polymer product was highly linear PEwith M η varing from 50000 to 260000.

Key words: Post met allocene catalyst, Alkenyl substituent, Ethylene polymerization, Tridentate complex containing nitrogen and iron

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