Preparation and Characterization of Novel Polyethylene Supported Metallocene Catalysts

Abstract

Abstract:

Different meshes powder of polyethylene grafting 4-vinylpyridine copolymers (PEVP) has been produced through the irradiation method. After pretreated with Methylaluminoxane (MAO), the copolymers were used as the supports for Cp₂ZrCl₂ catalyst. Results of XPS and FTIR measurements show that the catalytic sites have been bridged through MAO on the polyethylene carrier. The percentages of grafting 4-vinylpyridine and supported Cp₂ZrCl₂ depend on the size of polyethylene powder. The smaller the polyethylene powder, the more percent 4-vinylpyridine group and the Cp₂ZrCl₂ on the polyethylene chains, and the polyethylene-supported catalyst has a much higher activity for ethylene polymerization.

Key words: Polyethylene grafting 4-vinylpyridine, Supported catalyst, Cp₂ZrCl₂

CLC Number:

O631

TrendMD:

ZHU Ning, SUN Wen-Hua, LI Zi-Long, SHAO Chang-Xing, HU You-Liang, HE Jia-Song. Preparation and Characterization of Novel Polyethylene Supported Metallocene Catalysts[J]. Chem. J. Chinese Universities, 2001, 22(S1): 208.

[1]	TENG Xiaobo,ZHANG Chunxia,ZHANG Ying. Synthesis of the Supported Au Polystyrene/poly(acrylic acid) Composite Microspheres and Their pH Regulated Performance^† [J]. Chem. J. Chinese Universities, 2016, 37(8): 1509.
[2]	LIU Jiaxin, SONG Yian, HUANG Yudong. PdZn Alloy Nanoparticles Epitaxial Growth on ZnO Nanowires for Methanol Steam Reforming^† [J]. Chem. J. Chinese Universities, 2016, 37(7): 1372.
[3]	DENG Jiguang, HE Shengnan, XIE Shaohua, YANG Huanggen, LIU Yuxi, DAI Hongxing. Research Advancements of Ordered Porous Metal Oxide Catalysts for the Oxidative Removal of Volatile Organic Compounds^† [J]. Chem. J. Chinese Universities, 2014, 35(6): 1119.
[4]	ZHANG He-Xin, ZHANG Hao, ZHANG Chun-Yu, HAO Xiu-Feng, ZHANG Xue-Quan. Synthesis and Properties of Ethylene-polyhedral Oligomeric Silsesquioxane Copolymer with Bis(cyclopentadienyl) Zirconium Dichloride Catalyst [J]. Chem. J. Chinese Universities, 2012, 33(08): 1850.
[5]	CHEN Shuai-Shuai, LUO Shi-Zhong, LI Jun-Fang, LIU Chun-Rong, SUN Xiu-Li, TANG Yong*. Highly Diastereroselective Synthesis of Dihydrofurans Catalyzed by PE-supported Pyridinium [J]. Chem. J. Chinese Universities, 2011, 32(3): 712.
[6]	YIN Jing-Bo, CHEN Xue-Si, ZHANG Long, LIU Ao, YANG Ya-Nan, YIN Min, LOU Ling . Liquid-phase Hydrogenation of Furfural to Tetrahydrofurfuryl Alcohol Catalyzed by Polymer Resin Supported Palladium Catalysts [J]. Chem. J. Chinese Universities, 2002, 23(7): 1363.
[7]	HU Da-Wei, QIN Yong-Ning, MA Zhi, HE Fei . Studies on Supported Fe-based Perovskite-like Oxide Catalyst [J]. Chem. J. Chinese Universities, 2002, 23(11): 2166.
[8]	LI Hong, ZHANG Wen-Fang, HE Bing-Lin. Synthesis of Comb Graft Copolymers (Ⅱ) [J]. Chem. J. Chinese Universities, 2001, 22(S1): 273.
[9]	PENG Feng, LIU Zhen-Hua. A Novel Catalyst for Direct Vapor Phase Carbonylation of Ethanol [J]. Chem. J. Chinese Universities, 2000, 21(9): 1462.
[10]	XU Jun-Ting, OUYANG Jian-Ying, FAN Zhi-Qiang, CHEN De-Quan, FENG Lin-Xian. Syndiospecific Polymerization of Styrene Catalyzed Using Polymer Supported CpTiCl₃ [J]. Chem. J. Chinese Universities, 1999, 20(2): 327.
[11]	WANG Li, FENG Lin-Xian, XU Jim-Ting, YANG Shi-Lin, FENG Zi-Xian, XIAO Fei . Studies on TiCl₄/Al₂Et₃Cl₃/Y Zeolite High Effective Catalytic System for Copolymerization of Ethylene and Propylene [J]. Chem. J. Chinese Universities, 1993, 14(4): 591.
[12]	Chen Yuan-yin, Hu Xu-bo, Lu Xue-ran. Synthesis of Poly-γ-[N,N-bis(β-ethylmercaptoethyl)amino] Propyl Silsesquioxane Rhodium Complex and Its Catalytic Hydrosilylation Behavior [J]. Chem. J. Chinese Universities, 1991, 12(9): 1268.
[13]	Lu Xueran, Zhong Zhenlin, Chen Yuanyin . Synthesis of Poly-4-oxa-6,7-bis(diphenylphosphino) heptyl Siloxanc Rhodium Complex and Its Catalytic Hydrosilylation Behavior [J]. Chem. J. Chinese Universities, 1990, 11(6): 561.
[14]	He Binglin, Sun Juntan, Li Hong, Jin Xiaonong . Studies on the Preparation and Hydrogenation Properties of Polymer Supported Colloidal Palladium Catalysts [J]. Chem. J. Chinese Universities, 1990, 11(5): 521.
[15]	Ran Ruicheng, Mao Guoping . Polymer-Supported Stannic Tetrachloride Complex Catalysts (Ⅱ)——Copolymer (Styrene-Methyl Methacrylate)-Stannic Tetrachloride Complex [J]. Chem. J. Chinese Universities, 1989, 10(7): 784.

Preparation and Characterization of Novel Polyethylene Supported Metallocene Catalysts

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments