部分金属化聚(2-乙烯基芴)在溶液1中的离子对结构及沿聚合物链碳离子盐浓度的影响

A. Watanabe, M. Matsuda
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引用次数: 1

摘要

用电子吸收光谱法研究了四氢呋喃四氢呋喃和四氢呋喃-二甲氧基乙烷混合物中2-乙烯基芴的部分金属化聚合物。聚合物链内离子对相互作用所产生的效应被清楚地观察到。与锂离子和钠离子的接触离子对转化为溶剂分离离子对受溶剂分离离子对之间相互作用的影响。具有大量K+和Cs+阳离子的聚合物碳离子随着碳离子浓度的增加而发生λ位移,表明在溶液中形成了延伸的聚合物链。
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Studies of Partially Metallated Poly(2-vinylfluorene)'s in Solution 1 - Ion Pair Structure and the Concentration Effects of Carbanion Salts Along the Polymer Chain
Partially metallated polymers of 2-vinylfluorene in tetrahydrofuran THF and THF-dimethoxyethane mixtures were studied by electronic absorption spectroscopy. Effects arising from interaction of the ion pairs within the polymer chain were clearly observed. Conversion of the contact ion pairs with lithium and sodium cations into the solvent-separated ion pairs is influenced by interactions between the solvent-separated ions pairs. The polymer carbanions with bulky K+ and Cs+ cations exhibited a shift of λ with increasing carbanion concentration, suggesting the formation of an extended polymer chain in solution.
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The language of biotechnology: a dictionary of terms j. m. walker and m. cox, acs professional reference book, american chemical society, washington dc, 1988. pp. viii + 255, price £89.91. isbn 0–8412–1489–1 Algal biotechnology edited by t. stadler, j. mollion, m.-c. verdus, y. karamanos, h. morvan and d. christiaen, elsevier science publishers, london, 1989. pp. xii + 522, price £55.00. isbn 1–85166–233–2 Rubber technology handbook werner hofmann, carl hanser verlag, munich, 1989. pp. xv + 611, price dm 86.00. isbn 3–446–14895–7 Developments in the science and technology of composite materials edited by a. r. bunsell, p. lamicq and a. massiah, elsevier science publishers, london, 1989. pp. iii + 835, price £130.00. isbn 1–85166–359–2 International union of pure and applied chemistry—macromolecular chemistry division (iv): commission on macromolecular nomenclature (iv.1)
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