Login In
Citation:
Miao Hong, Bai-xiang Li, Yue-sheng Li. SYNTHESIS OF FUNCTIONAL POLYETHYLENE via COPOLYMERIZATION OF ETHYLENE AND SUBSTITUTED ALLENE USING BIS(-ENAMINOKETONATO)TITANIUM CATALYSTS[J]. Chinese Journal of Polymer Science,
;2011, 29(6): 692-698.
doi:
10.1007/s10118-011-1081-3
-
Novel copolymerization of ethylene with substituted allenes (CH2＝C＝CH―R, 1: R = n-butyl, 2: R = n-octyl) using bis(-enaminoketonato)titanium catalysts [PhN＝C(R2)CHC(R1)O]2TiCl2 (1a: R1 = CF3, R2 = CH3; 1b: R1 = Ph, R2 = CF2) has been investigated. In the presence of modified methylaluminoxane, these catalysts can copolymerize ethylene with substituted allenes, affording copolymers with unimodal molecular weight distributions and homogeneous compositions. By varying the reaction conditions, the comonomer incorporation can be tuned in the range of 0-3.6 mol%. 1H-NMR spectra reveal that the copolymerization proceeds through 1,2-insertion fashion of allene comonomer exclusively, and the regioselective nature maintains under various reaction conditions. The retained intra-chain double bond can be converted into the epoxy group under mild conditions.
-
Keywords:
- Ziegler-Natta polymerization
-
-
-
[1]
-
[1]
-
-
-
[1]
Hailong He , Wenbing Wang , Wenmin Pang , Chen Zou , Dan Peng . Double stimulus-responsive palladium catalysts for ethylene polymerization and copolymerization. Chinese Chemical Letters, 2024, 35(7): 109534-. doi: 10.1016/j.cclet.2024.109534
-
[2]
Xunzhang Fan , Yuanjin Zhao , Shufang Luo , Aihua He . Karl Ziegler: A Pioneer in the Polyolefin Industry – Commemorating the 50th Anniversary of the German Chemist’s Passing. University Chemistry, 2024, 39(8): 389-394. doi: 10.3866/PKU.DXHX202312065
-
[3]
Xue Zhao , Mengshan Chen , Dan Wang , Haoran Zhang , Guangzhi Hu , Yingtang Zhou . Ultrafine nano-copper derived from dopamine polymerization & synchronous adsorption achieve electrochemical purification of nitrate to ammonia in complex water environments. Chinese Chemical Letters, 2024, 35(8): 109327-. doi: 10.1016/j.cclet.2023.109327
-
[4]
Fei Yin , Erli Yang , Xue Ge , Qian Sun , Fan Mo , Guoqiu Wu , Yanfei Shen . Coupling WO3−x dots-encapsulated metal-organic frameworks and template-free branched polymerization for dual signal-amplified electrochemiluminescence biosensing. Chinese Chemical Letters, 2024, 35(4): 108753-. doi: 10.1016/j.cclet.2023.108753
-
[1]
Metrics
- PDF Downloads(0)
- Abstract views(584)
- HTML views(23)
DownLoad: