发明授权
- 专利标题： Associations of bases, resulting from the combination of a lithium alkyl or aryl with an alkali metal amide or hydride, polymerization process in which they are used, and product obtained
- 专利标题（中）： 由烷基或芳基与碱金属氨化物或氢化物的组合得到的碱的结合，使用它们的聚合方法和获得的产物
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申请号： US340078申请日： 1982-01-18
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公开(公告)号： US4435312A公开(公告)日： 1984-03-06
- 发明人: Serge Lecolier , Serge Raynal
- 申请人： Serge Lecolier , Serge Raynal
- 申请人地址： FRX Paris
- 专利权人： Societe Nationale des Poudres et Explosifs
- 当前专利权人： Societe Nationale des Poudres et Explosifs
- 当前专利权人地址： FRX Paris
- 优先权： FRX8100854 19810119
- 主分类号： C08F4/00
- IPC分类号： C08F4/00 ; C07F1/00 ; C08F2/00 ; C08F4/42 ; C08F4/46 ; C08F4/48 ; C08F4/56 ; C08F36/04
摘要：
The invention relates to new associations of strong bases, having the following general formula:n'RLi--n MZin which: n and n' are the numbers of mols of each compound, R is an alkyl or aryl radical, M is an alkali metal chosen from amongst lithium, sodium or potassium and Z is a hydride or an inorganic amide, the ratio n/n' being between 0.2 and 50.It is preferred to use bases in which the metal of the alkali metal amide or hydride is potassium or sodium. These associations are formed very rapidly and can be applied to anionic polymerisation, in particular of conjugated dienes, in a solvent of low polarity or an apolar solvent.The polymers thus obtained contain a high percentage of 1,2 or 3,4 structures.
公开/授权文献
- US4940618A Optical information recording medium 公开/授权日：1990-07-10
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