A process for the preparation of hydrocarbon solutions of monofunctional ether initiators of the following general structure: M--Z--O--C(R.sup.1 R.sup.2 R.sup.3) wherein M is an alkali metal; Z is a branched or straight chain hydrocarbon group which contains 3-25 carbon atoms, optionally containing aryl or substituted aryl groups; and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl groups containing lower alkoxy, lower alkylthio, and lower dialkylamino groups, aryl or substituted aryl groups containing lower alkoxy, lower alkylthio, and lower dialkylamino groups, and their employment as initiators in the anionic polymerization of olefin containing monomers in an inert, hydrocarbon solvent comprising reacting an omega-protected-1-haloalkyl with lithium metal dispersion having a particle size between 10 and 300 millimicrons in size, at a temperature between 35.degree. and 130.degree. C. in an alkane solvent containing 5 to 10 carbon atoms.
一种制备单官能醚
引发剂的烃溶液的工艺,其具有以下一般结构:M--Z--O--C(R.sup.1 R.sup.2 R.sup.3),其中M是碱
金属;Z是一个含有3-25个碳原子的支链或直链烃基,可选含有芳基或取代芳基;R.sup.1、R.sup.2和R.sup.3分别独立地选择自氢、烷基、取代烷基(含有较低烷氧基、较低烷
硫基和较低二烷胺基)、芳基或取代芳基(含有较低烷氧基、较低烷
硫基和较低二烷胺基),并将它们作为
引发剂应用于含有烯烃单体的阴离子聚合的过程中,在惰性烃溶剂中反应ω-保护-1-卤代烷基与粒径在10到300毫微米之间的
锂金属分散体在35℃至130℃之间的温度下在含有5至10个碳原子的
烷烃溶剂中进行反应。