Studies on Gaseous Phase Polymerization of Ethylene with Highly Active Catalyst(Ⅱ)──The Effect of Modifiers,Prepolylnerization of Catalyst and Various Polymerization Conditions on Gaseous Phase Polymerization of Ethylene

Abstract

Abstract: In addition to the effects of type of alcobol,molar ratio on C₂H₅OH/Ti, and amount Of n-butyl ether in highly active catalyst of TiCl₄/MgCl₂/ZnCl₂/SiCl₄/alcohol/Al(i-Bu )₃ on polymerization and morphology of the product,and the regularity of gaseous phase polymerization of ethylene and prepolymerization of catalyst have been studied.SEMand image analysis studies on morphology and particle size distribution of the catalyst and products of prepolymerization and polymerization showed that all the particle shapes were nearly spherical, and the particle ellipticity and dispersity of the catalyst were comparable to those of PEprepared with prepolymerized catalyst.

Key words: Gaseous phase polymerization of ethylene, Highly active catalyst, TiCl₄, Modifier, Particle morphology

TrendMD:

WANG Hai-Hua, LIAO Rony-Hui, WU Qing, LU Ze-Jian, CHEN Xue-Xin. Studies on Gaseous Phase Polymerization of Ethylene with Highly Active Catalyst(Ⅱ)──The Effect of Modifiers,Prepolylnerization of Catalyst and Various Polymerization Conditions on Gaseous Phase Polymerization of Ethylene[J]. Chem. J. Chinese Universities, 1996, 17(3): 474.

[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]	WANG Yehai, KONG Yifu, CHEN Chenchen, LI Yiming. Chemical Synthesis of K33 Acetylated SUMO Protein^† [J]. Chem. J. Chinese Universities, 2016, 37(11): 1987.
[3]	PI Hong, CHEN Shen-Qing, GUO Shao-Yun*. Microstructure and Properties Development of Impact-modified PVC During Photoageing [J]. Chem. J. Chinese Universities, 2009, 30(5): 1029.
[4]	SONG Rui-Juan^1,2, GUO Ying^1,2, FU Yu^1,2, SHI Hong-Yu^1,2, LONG Yuan-De¹, HUANG Tian-Bao¹. Preparation of Isoquinolinecarboxylic Acid Derivative as Brush-type Chiral Stationary Phase and Its Application in the Enantiomeric Resolutions of Binaphthol Derivatives [J]. Chem. J. Chinese Universities, 2007, 28(1): 56.
[5]	ZHAO Song-Lin, CHEN Jun-Ru, ZHOU Ya-Fen, XIE Yong-Mei, LI Xian-Jun . Selective Hydrogenation of p-Chloronitrobenzene over Ru-Pt/γ-Al₂O₃ Catalyst Modified by Metal Cations [J]. Chem. J. Chinese Universities, 2004, 25(8): 1552.
[6]	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.
[7]	LU Jiang, LIANG Hui, ZHANG Rong-Fu. Living Cationic Polymerization of β-Pinene with1-Phenylethyl Chloride/TiCl₄/Ti(OiPr)₄ [J]. Chem. J. Chinese Universities, 2000, 21(12): 1932.
[8]	LI Xiao-Hong, YOU Xin, LIANG Chang-Hai, ZHANG Sui-Zhi, WEI Zhao-Bin, LI Xu-Yuan, LI Can. Heterogeneous Asymmetric Hydrogenation of Ethyl Pyruvate on Chirally Modified Pt/Al₂O₃Catalyst with Fixed-bed Reactor [J]. Chem. J. Chinese Universities, 2000, 21(12): 1900.
[9]	LIU Yue-Qi, GE Yong-Hui, CAI Qing-Song, JIANG Sheng-Xiang, CHEN Li-Ren. Directly Resolution of Enantiomeric 〆,β-Biphenyl Dialkyl Dicarboxylates by HPLC on a Cellulose-Based Chiral Stationary Phase --Mobile Phase Modifier Effects on Retention and Stereoselectivity [J]. Chem. J. Chinese Universities, 2000, 21(12): 1828.
[10]	CHEN Shu-Yu, WU Rong-Hu, LIN Shu-Qin . Studies of Matrix Modifiers in the Determination of Tin by GFAAS [J]. Chem. J. Chinese Universities, 1998, 19(6): 861.
[11]	WANG Zhi-Ming, XIAO Wei, ZHANG Qi-Xing, WANG Hai-Hua. Studies on Gaseous Phase Polymerization of Ethylene with Highly Active Catalyst(Ⅳ)——The Effects of Zinc Compound on the Properties of Catalysts and Products [J]. Chem. J. Chinese Universities, 1998, 19(2): 295.
[12]	ZHANG Bao-Long, ZHANG Hui-Qi, YOU Ying-Cai, DU Zong-Jie, DING Pei-Yuan, ZHAI Hua-Chun, HUANG Ji-Fu . Use of Chain-Extended Ureas as Latent Curing Agents and Toughening Modifiers for Epoxy Resin [J]. Chem. J. Chinese Universities, 1998, 19(11): 1837.
[13]	LU Jian-De, XU Xiu-Zhu, FU Xiao-Yun . Effect of AIcohol Modifier on Micellar Electrokinetic Chromatography Separation [J]. Chem. J. Chinese Universities, 1998, 19(11): 1752.
[14]	KAN Cheng-You, DU Zong-Hua, LIU Man-Hong, LUO Dong, KONG Xiang-Zheng . Particle Morphology and Film Structure in Seeded Emulsion Polymerization [J]. Chem. J. Chinese Universities, 1995, 16(3): 477.
[15]	WANG Hai-Hua, LI Nai-Xin, LU Ze-Jian, LIN Shang-An. Studies on Gaseous Phase Polymerization of Ethylene with Highly Active Catalyst(Ⅰ)──The Gaseous Phase Homo-and Copolymerization as well as Kinetics of Gaseous Phase Polymerization of Ethylene [J]. Chem. J. Chinese Universities, 1994, 15(3): 454.

Studies on Gaseous Phase Polymerization of Ethylene with Highly Active Catalyst(Ⅱ)──The Effect of Modifiers,Prepolylnerization of Catalyst and Various Polymerization Conditions on Gaseous Phase Polymerization of Ethylene

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments