异丙胺为核合成超支化水杨醛亚胺镍系催化剂及其催化乙烯齐聚性能.pdf

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异丙胺为核合成超支化水杨醛亚胺镍系催化剂及其催化
乙烯齐聚性能
施伟光,符子剑,王斯晗2,梁红姣,侯夷,李翠勤,王俊
(东北石油大学化学化工学院石油与天然气化工省重点实验室,黑龙江大庆163318:2中国石油大庆化工
研究中心,黑龙江大庆163714
摘要:以异丙胺为核合成了一种1.0代聚耽胺-胺型超支化大分子骨架,并进一步与水杨醛和六水合氯化镍通过
锅法”合成了一种具有新型支链结构的超支化水杨醛亚胺镍系催化剂。采用FTIR、'HNMR和ESI-MS表
征方法证明了合成产物的结构与理论结构相符。在甲基铝氧烷为助催化剂、甲苯为落剂的催化体系內确定了催
化乙斾齐聚的最佳反应条件,在AINi摩尔比1000、反应温度25℃、反应压カ0.5MPa、反应时间30min的条件
下,催化乙烯齐聚的活性达3.8×10gOig/( mol Nih),齐聚产物主要是C8及以下烯烃,含量高达99%。在相同
条件下,通过对比不同骨架结构的超支化镍配合物,初步确定了超支化镍配合物催化乙烯齐聚反应体系催化性
能的影响因素
关键词:聚合;催化剂;选择性:活性
中图分类号:()643.3
文献标志码:A
文章编号:1000-6613(2017)05-1727-07
DOI:10.160851 1.issn.1000-6613.2017.05.022
Synthesis of hyperbranched nickel complex with isopropylamine as a core
and its catalytic performance of ethylene oligomerization
ST Weiguang Fuzian, WANG h, IANG longi, ITO Shuang, 1. iin, WAN. Jm
(Key Laboratory of Oil& Gas Chemical Technology, College of Chemistry &Chemical Engineering, Northeast
Petroleum University, Daqing 163318, Heilongjiang, China; Daqing Petrochemical Research Center, CNPC, I)aqing
163714, Heilongjiang, China)
Abstract A novl 1.0G poly(amidoaminc) hyperbranched molcculc with isopropylamine as thc corc
was synthesized, and ils corresponding salicylaldimine nickel complex was synthesized by one-pol
method with salicylaldehyde and nickel chloride hexahydrate. The intermediate and nickel complex
wcrc characterized by FTIR, H NMR and ESI-MS. The optimal rcaction conditions of this catalytic
systcm werc dctcrmincd with methylaluminoxane as co-calalyst and lolucnc as solvcnt. Thc bcst
conditions of oligomerization reaction wcrc Al/Ni ratio of 1000, 25 C, 0. 5MPA and 30min. Under thcsc
conditions, the catalylic activity was 3. 8x 10g Olig/(mol N h), and the selectivity of olefin under Cs
was as high as 99%. Through comparing the hyperbranched nickel complexes with different
backbones, we preliminarily dctcrmincd the influencing factors for hyperbranched nickel complcxcs in
the oligomerization of ethylene
Key words: polymerization; calalyst: selectivily; reactivity
收稿日期:2016-09-18:修改稿日期:2017-01-11
第一作者:施伟光(1979ー),男,博士,副教授。联系人:王俊,
基金项目:国家自然科学基金(21576048)、中国石油科技创新基金
教授,博士牛导师。E-mail: wang]un1965 Cycab.nc
2014D-50060503)及东北石油大学青年科学基金(2013NQ130)项目。
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