UV Studies on Aluminoxane EBAO and Its Influence on Ethylene Polymerization

Abstract

Abstract: Ethyl-(iso-butyl) aluminoxane(EBAO) was synthesized and characterized by UV Visible spectrum. The four absorption peaks of UV Visible spectrum of EBAOwere assigned to the different sequence distributions of alkyl groups of EBAO. Ethylene copolymerization by Et(Ind)₂ZrCl₂/EBAOand MAOwas investigated. The interaction between metallocene and aluminoxanes was monitored by UV-Visible spectra. It was found that EBAOwould form looser ion pair than MAOand accounted for the high comonomer incorporation of copolymers synthesized by EBAO.

Key words: Ethyl(iso-butyl)-aluminoxane(EBAO), UV-Visible spectrum, Ethylene polymerization

CLC Number:

O632

TrendMD:

ZHAO Yan, WANG Qi, FENG Lin-Xian . UV Studies on Aluminoxane EBAO and Its Influence on Ethylene Polymerization[J]. Chem. J. Chinese Universities, 2001, 22(11): 1948.

[1]	ZHANG Danfeng, ZHAO Maoyu, GUO Ning, TANG Songchao, ZHENG Anna. “One-pot”N-(2-Benzamidophenyl)-salicylaldehyde Imine/TiCl₄·2THF for Catalytic Ethylene Polymerization ^† [J]. Chem. J. Chinese Universities, 2019, 40(9): 2012.
[2]	ZHANG Dan-Feng, FAN Shuai, FU Yan, LI Sen. Synthesis of Branched Polyethylene and Characterization of Their Structures and Properties [J]. Chem. J. Chinese Universities, 2013, 34(8): 2005.
[3]	ZHANG Dan-Feng, SUN Yue, DENG Xiao-Juan, CHEN Qian, DONG Bao-Jun. Synthesis of Bis(β-hydroxyimino)titanium Complexes and Their Catalysis for Ethylene Polymerization [J]. Chem. J. Chinese Universities, 2012, 33(09): 2121.
[4]	FAN Rui-Qing, YUAN Guo-Hui, DING Xiao-Dong, CHEN Jie, YANG Yu-Lin. Synthesis, Characterization , Crystal Structures and Catalytic Performance of 2,6-Bis(imino)pyridyl Manganese Complexes [J]. Chem. J. Chinese Universities, 2011, 32(6): 1239.
[5]	YUAN Jian-Chao*, MEI Tong-Jian, WANG Xue-Hu, LIU Yu-Feng. Synthesis and Characterization of α-Diimine Nickel(Ⅱ) Catalyst Containing Br Groups for Ethylene Polymerization [J]. Chem. J. Chinese Universities, 2011, 32(5): 1200.
[6]	LV Chun-Qing, ZHANG Fan, MU Ying, LI Hua-Fu. Synthesis of Complex(1,2\\|Ph₂-4-MeCp)₂ZrMe₂and Catalysis for Ethylene Polymerization [J]. Chem. J. Chinese Universities, 2006, 27(2): 375.
[7]	FAN Rui-Qing, ZHU Dong-Sheng, MU Ying, LI Guang-Hua, FENG Shou-Hua. Synthesis, Characterization, Crystal Structures of Bis(imino)pyridyl Nickel Complexes and Their Catalytic Performance for Ethylene Polymerization [J]. Chem. J. Chinese Universities, 2005, 26(7): 1215.
[8]	GAO Wei, MU Ying, LI Guang-Hua, LIU Xiao-Ming SU Qing, YAO Wei, FENG Shou-Hua . Synthesis, Characterization of β-Diketoiminato Ni(Ⅱ) Complexes and Its Catalytic Performance in Polymerization of Ethylene [J]. Chem. J. Chinese Universities, 2005, 26(1): 134.
[9]	ZHANG Qi-Xing, LIN Shao-Quan, WU Zhi-Yong, WANG Hai-Hua. Synthesis of Branched Polyethylene via Copolymerization in situ Catalyzed by (α-diimine)nickel(Ⅱ) Complex-TiCl₄ Combined and Supported Catalyst [J]. Chem. J. Chinese Universities, 2004, 25(11): 2166.
[10]	LIU Chang-Kun, JIN Guo-Xin  . Allyl Containing Iron Post-Met allocene Catalyst for Ethylene Polymerization [J]. Chem. J. Chinese Universities, 2001, 22(7): 1233.
[11]	LI Yue, LIN Shang-An. Effect of Ethylene Prepolymerization in C₂H₄/H₂ Atmosphere with Ti-Mg Catalyst on Gas-phase Ethylene Polymerization [J]. Chem. J. Chinese Universities, 1996, 17(7): 1154.
[12]	Sun Dong-hao, Shi Yu-jun, Mu Shao-lin . The Effect of Doped Anions on the Properties of Poly-o-methylaniline Synthesized by the Electrochemical Method [J]. Chem. J. Chinese Universities, 1991, 12(7): 983.
[13]	Zhao Zhenhe, Zhou Xinhua, Lu Zejian, Lu Yun, Lin Shangan . Kinetics of Ethylene Polymerization and Regulation of Molecular Weight with ZnCl₂ [J]. Chem. J. Chinese Universities, 1990, 11(2): 193.

UV Studies on Aluminoxane EBAO and Its Influence on Ethylene Polymerization

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 13

Recommended Articles

Metrics

Comments