Ethylene polymerization by the chromium catalysts based on bidentate [O, P O] or [S, P] ligands

LP He, HL Mu, BX Li, YS Li

Index: He, Li-Peng; Mu, Hong-Liang; Li, Bai-Xiang; Li, Yue-Sheng Journal of Polymer Science, Part A: Polymer Chemistry, 2010 , vol. 48, # 2 p. 311 - 319

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Citation Number: 15

Abstract

Abstract Novel chromium catalysts based on bidentate phenoxy-phosphinoyl (HO-2R 1-4R 2- 6 (Ph 2 P [DOUBLE BOND] O) C 6 H 2: R 1= R 2= H, 3a; R 1= tBu, R 2= H, 3b; R 1= R 2= tBu, 3c; R 1= R 2= cumyl, 3d; R 1= anthracenyl, R 2= H, 3e) and thiophenol-phosphine (HS- 2R 1-4R 2-6 (Ph 2 P) C 6 H 2: R 1= R 2= H, 4a; R 1= SiMe 3, R 2= H, 4b) were prepared and characterized. Treatment with modified methyaluminoxane, these catalysts displayed ...

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