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Transition metal-based homopolymerisation of macromonomers

机译:大分子单体的过渡金属基均聚

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摘要

Since their first utilisation in 1958 for the synthesis of graft copolymers, macromonomers have raised increasing interest because of their ability to provide an easy access to a large number of (co) polymers of different chemical natures and various controlled topologies (comb-like, bottlebrush, star-like, graft copolymers...) exhibiting very different solution or solid-state properties compared to their linear homologues. During the first decades, the (co) polymerisation of macromonomers was based on poorly controlled free radical polymerisations. Therefore, it was difficult to obtain polymers in a controlled manner. With the appearance of Ring Opening Metathesi Polymerisation (ROMP) or of new free radical processes such as Atom Transfer Radical Polymerisation (ATRP) that allow control of molar masses, and of Ziegler-Natta-type polymerisation that allows control of the tacticity of the polymacromonomer backbone, these processes have been increasingly utilised for macromonomer (co) polymerisations. In this paper, a review of the results published in the literature regarding the homopolymerisation of macromonomers in the presence of transition metal is presented.
机译:自从1958年首次将其用于接枝共聚物的合成以来,大分子单体引起了越来越多的关注,因为它们能够轻松获得大量具有不同化学性质和各种受控拓扑结构(梳状,刷状)的(共)聚合物,星形接枝共聚物...)与其线性同系物相比,表现出截然不同的溶液或固态特性。在最初的几十年中,大分子单体的(共)聚合是基于控制不佳的自由基聚合。因此,难以以受控方式获得聚合物。随着开环易位聚合(ROMP)或新的自由基过程(例如可控制摩尔质量的原子转移自由基聚合(ATRP))和齐格勒-纳塔型聚合反应的出现,可控制多大分子单体的立构规整度作为主链,这些方法已越来越多地用于大分子单体(共)聚合。在本文中,对在过渡金属存在下大分子单体均聚的文献发表的结果进行了综述。

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