6230-65-5Relevant articles and documents
Copolymers of Ethylene and Vinyl Amino Acidic Ester with High Molecular Weight Prepared by Non-metallocene Catalysts
Wang, Jing,Nan, Feng,Guo, Jiangping,Wang, Jian,Shi, Xianghui,Huang, Haibing,Huang, Qigu,Yang, Wantai
, p. 609 - 619 (2016)
Non-metallocene catalysts containing [N, Si, N, P]-type ligands based on diphenyl phosphorus-phenylamine and their derivatives were synthesized and characterized by H(13C) NMR, ESI-MS and micro analysis. They were able to catalyze copolymerization of ethylene with N-acetyl-O-(hex-5-enyl)-L-tyrosine ethyl ester after activated by methylaluminoxane (MAO). Effects of transition metal atoms (Ti, Zr and Hf), ligand structures and polymerization conditions were investigated. The structures and properties of the obtained polymers were characterized by FT-IR, 13C NMR, GPC and DSC. The results indicated that the obtained copolymers had high weight average molecular weight of 2.70 × 105 g/mol and high comonomer incorporation rate of 23.07 wt% within the copolymer chain. The melting temperature of the copolymer was up to 138.6 °C higher than that of the polyethylene.
PHOSPHACYCLE COMPOUND AND PROCESS FOR PRODUCTION THEREOF
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Paragraph 0520; 0521, (2018/10/30)
The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.
Palladium(II) complex of phosphinic amide, [Pd(Ph2P(O)Ch 2NPh)2], and its catalytic investigation towards Suzuki-Miyaura cross-coupling reactions
Ibrahim, Sk Md,Ganesamoorthy, Chelladurai,Balakrishna, Maravanji S.
, p. 1400 - 1403 (2013/12/04)
The reaction between aniline and chlorodiphenylphosphine in 2:1 molar ratio afforded the aminophosphine C6H5NHPPh2 (1) which on subsequent treatment with paraformaldehyde produced the methylene inserted product, Ph2/