Following a short introduction and a brief discussion of thermodynamics of propagation, the kinetics and mechanisms of anionic polymerization are reviewed. The systems involving living polymers, a term introduced by this writer, are discussed in greater detail because the existence of various ionic ...
living anionic polymerization 读音:美英 living anionic polymerization基本解释 活性负离子聚合 分词解释 living活(着)的 anionic阴离子的 polymerization聚合 living anionic polymerization是什么意思 living anionic polymerization怎么读 living anionic polymerization在线翻译 living anionic polymerization中文意思 living anionic...
anionic polymerization mechanism microstructure摘要 The anionic polymerization of (E)-1,3-pentadiene (EP) and (Z)-1,3-pentadiene (ZP) together with mixture of the E/Z isomers are investigated, respectively. The kinetic analysis shows that the activation energy for EP (86.17 kJ/mol) is much ...
1) living anionic polymerization 活性阴离子聚合1. Three synthetic methods of star polymers,living anionic polymerization,living cationic polymerization,and atom transfer radical polymerization,were introduced in detail. 概述了星型聚合物的特点和应用,较详细地介绍了星型聚合物的3种合成方法:活性阴离子聚合法...
Living Anionic Polymerization of Isocyanates 来自 Springer 喜欢 0 阅读量: 43 作者:CG Chae,HB Seo,JS Lee 摘要: IUMHT, Lausanne, Switzerland.关键词: Polyisocyanate Helical conformation Anionic polymerization Trimerization Additive Dual functional initiator Rod-coil block copolymer Chirality Morphology ...
Block copolymers, 9-ethylcarbazolyl methacrylate (CzMA) with 3-nitro-9-ethylcarbazolyl methacrylate (NCzMA), and styrene with optically functionalized isocyanates containing disperse red 1 (DR1NCO) and (s)-(-)-2-methylbutanol (MBI), were prepared by anionic polymerization for photo-electronic ...
is obtained via a chain-end control mechanism. Not only the stereospecific coordination of the styrene monomer to the metal but esp. the configurational stability of the chiral carbanionic chain-end is of utmost importance for stereocontrolled living polymn. of styrene. 展开 ...
the polymer conversion rates were nearly 100% and corresponding GPC chromatograms showed double and/or triple peaks because after chain propagation had completely finished, the styryl living end reacted with the silylvinyl group of the side chain of a different polymer molecule (addition mechanism)....
A study has been carried out on the anionic polymerization of eight p -alkenylstyrene derivatives. The monomers used are p -(2-propenyl)styrene (1), p -(2-propenyl)-α-methylstyrene (2), p -(2-butenyl)styrene (3), p -(2-butenyl)-α-methylstyrene (4), p -(2-methyl-2-propenyl...
The anionic polymerization of 4-vinylpyridine (4VP) has been investigated in 9/1 pyridine/THF at 0 °C. After characterization of the living character of 4VP polymerization, its copolymerization with tert -butyl methacrylate (tBMA) has been carried out also successfully. Their relative reactivity ...