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    • 7. 发明授权
    • Method for the preparation of poly sg(a)-methylstyrene
    • 聚sg(a) - 甲基苯乙烯的制备方法
    • US07179870B2
    • 2007-02-20
    • US10550567
    • 2004-03-29
    • Alexia Balland-LongeauMarc CalonneFranck JousseJean-Marie Catala
    • Alexia Balland-LongeauMarc CalonneFranck JousseJean-Marie Catala
    • C08F2/06C08F12/12
    • C08F12/12Y10S526/912
    • The invention relates to a process for the preparation of poly(α-methylstyrene) by anionic polymerization of the α-methylstyrene monomer, said process successively comprising the following stages: a) a stage of preparation of a solution comprising the α-methylstyrene monomer and a nonpolar aprotic solvent; b) a stage of neutralization of the solution prepared in a) comprising the addition, to this solution, of an effective amount of at least one monofunctional organometallic initiator, so as to neutralize the proton sources of the solution prepared in a); c) a stage of cooling the solution obtained in b) to a temperature of less than 0° C.; d) a stage of initiation of the polymerization comprising the addition, to the cooled solution in c), of a predetermined amount of said monofunctional initiator; e) a stage of propagation of the polymerization comprising the addition, to the solution obtained in d), of a polar aprotic solvent, said solvent being added in an amount which is lower than that of the nonpolar aprotic solvent; f) a stage of termination comprising the addition, to the solution prepared in e), of a polar protic solvent.
    • 本发明涉及通过α-甲基苯乙烯单体的阴离子聚合制备聚(α-甲基苯乙烯)的方法,所述方法依次包括以下阶段:a)制备包含α-甲基苯乙烯单体和 非极性非质子溶剂; b)中和a)中制备的溶液的阶段,包括向该溶液中加入有效量的至少一种单官能有机金属引发剂,以中和a)中制备的溶液的质子源; c)将b)中得到的溶液冷却至低于0℃的阶段; d)聚合引发阶段,包括向c)中冷却的溶液加入预定量的所述单官能引发剂; e)聚合扩展的阶段,包括向极性非质子溶剂中加入d)中得到的溶液,所述溶剂的添加量低于非极性非质子传递溶剂的量; f)终止阶段,包括向e)中制备的溶液中加入极性质子溶剂。
    • 9. 发明申请
    • Method for the preparation of poly sg(a)-methylstyrene
    • 聚sg(a) - 甲基苯乙烯的制备方法
    • US20060252896A1
    • 2006-11-09
    • US10550567
    • 2004-03-29
    • Alexia Balland-LongeauMarc CalonneFranck JousseJean-Marie Catala
    • Alexia Balland-LongeauMarc CalonneFranck JousseJean-Marie Catala
    • C08F4/46
    • C08F12/12Y10S526/912
    • The invention relates to a process for the preparation of poly(α-methylstyrene) by anionic polymerization of the α-methylstyrene monomer, said process successively comprising the following stages: a) a stage of preparation of a solution comprising the α-methylstyrene monomer and a nonpolar aprotic solvent; b) a stage of neutralization of the solution prepared in a) comprising the addition, to this solution, of an effective amount of at least one monofunctional organometallic initiator, so as to neutralize the proton sources of the solution prepared in a); c) a stage of cooling the solution obtained in b) to a temperature of less than 0° C.; d) a stage of initiation of the polymerization comprising the addition, to the cooled solution in c), of a predetermined amount of said monofunctional initiator; e) a stage of propagation of the polymerization comprising the addition, to the solution obtained in d), of a polar aprotic solvent, said solvent being added in an amount which is lower than that of the nonpolar aprotic solvent; f) a stage of termination comprising the addition, to the solution prepared in e), of a polar protic solvent.
    • 本发明涉及通过α-甲基苯乙烯单体的阴离子聚合制备聚(α-甲基苯乙烯)的方法,所述方法依次包括以下阶段:a)制备包含α-甲基苯乙烯单体和 非极性非质子溶剂; b)中和a)中制备的溶液的阶段,包括向该溶液中加入有效量的至少一种单官能有机金属引发剂,以中和a)中制备的溶液的质子源; c)将b)中得到的溶液冷却至低于0℃的阶段; d)聚合引发阶段,包括向c)中冷却的溶液加入预定量的所述单官能引发剂; e)聚合扩展的阶段,包括向极性非质子溶剂中加入d)中得到的溶液,所述溶剂的添加量低于非极性非质子传递溶剂的量; f)终止阶段,包括向e)中制备的溶液中加入极性质子溶剂。