Neodymium Catalyst for the Polymerization of Dienes and Polar Vinyl Monomers,Macromolecular Rapid Communications

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Neodymium Catalyst for the Polymerization of Dienes and Polar Vinyl Monomers
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2017-08-21 , DOI: 10.1002/marc.201700427
Ruvanthi N. Kularatne ₁ , Annie Yang ₁ , Hien Q. Nguyen ₁ , Gregory T. McCandless ₁ , Mihaela C. Stefan ₁

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Ziegler–Natta catalysts have played a major role in industry for the polymerization of dienes and vinyl monomers. However, due to the deactivation of the catalyst, this system fails to polymerize polar vinyl monomers such as vinyl acetate, methyl methacrylate, and methyl acrylate. Herein, a catalytic system composed of NdCl₃⋅3TEP/TIBA is reported, which promotes a quasi‐living polymerization of dienes and is also active for the homopolymerization of polar vinyl monomers. Additionally, this catalytic system generates polymyrcene‐b‐polyisoprene and poly(myrcene)‐b‐poly(methyl methacrylate) diblock copolymers by sequential monomer addition. To encourage the replacement of petroleum‐based polymers by environmentally benign biobased polymers, polymerization of β‐myrcene is demonstrated with a catalytic activity of ≈106 kg polymer mol Nd⁻¹ h⁻¹.

中文翻译：

用于二烯和极性乙烯基单体聚合的钕催化剂

齐格勒-纳塔催化剂在二烯和乙烯基单体聚合的工业中发挥了重要作用。然而，由于催化剂的失活，该体系不能聚合极性乙烯基单体，例如乙酸乙烯酯，甲基丙烯酸甲酯和丙烯酸甲酯。这里，氯化钕组成的催化系统₃ ⋅3TEP/ TIBA报道，这促进二烯的准活性聚合，也是活跃的极性乙烯基单体的均聚反应。另外，此催化体系产生polymyrcene- b -聚异戊二烯和聚（月桂烯） - b-通过顺序添加单体获得聚（甲基丙烯酸甲酯）二嵌段共聚物。为了鼓励用对环境友好的生物基聚合物替代石油基聚合物，证明了β-月桂烯的聚合反应具有≈106 kg聚合物mol Nd ^-1 h ^-1的催化活性。

更新日期：2017-08-21

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