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    • 1. 发明授权
    • Long-chain dialkylmagnesium, its preparation process and applications
    • 长链二烷基镁,其制备方法和应用
    • US6063882A
    • 2000-05-16
    • US106120
    • 1998-06-29
    • Jean-Francois PelletierKarel BujadouxXavier OlondeEmmanuel AdissonAndre MortreuxThomas Chenal
    • Jean-Francois PelletierKarel BujadouxXavier OlondeEmmanuel AdissonAndre MortreuxThomas Chenal
    • C07C51/15C07F3/02C08F4/44C08F4/60C08F10/00C08F20/06C08F110/02C08F118/02C08F210/00C08F210/02C08F11/02
    • C07F3/02C07C51/15C08F10/00C08F110/02C08F210/02
    • This dialkylmagnesium is represented by the formula R--(CH.sub.2 --CH.sub.2).sub.n --Mg--(CH.sub.2 --CH.sub.2).sub.n' --R', (E--O--E').sub.x, where R and R' each independently represent a C.sub.1 -C.sub.20 hydrocarbon residue, branched or not, substituted or not, of the alkyl, cycloalkyl or aralkyl type; n and n', identical or substantially identical, represent an average number of --CH.sub.2 --CH.sub.2 -- linkages such that the average number of carbon atoms in each of the two chains borne by Mg is greater than 20; E and E', identical or different, each represent an alkyl radical, linear or cyclical, branched or not; and 0.ltoreq.x.ltoreq.2, x being the average value of the number of moles of E--O--E' ether complexed to the dialkylmagnesium. In order to prepare a dialkylmagnesium of this type, ethylene is polymerized in an anhydrous, de-oxygenated hydrocarbonaceous solution by means of a catalyst Cp*.sub.2 MCl.sub.2 Li(OEt.sub.2).sub.2 (Cp*=a pentamethylcyclopentadienyl ligand; M=scandium, yttrium or a metal of the lanthanide series; Et=ethyl), in the presence of a dialkylmagnesium, soluble in the solvent, of the formula R--Mg--R', (E--O--E').sub.x, where R, R', E, E' and x are as defined above, as a chain-transfer agent, and the reaction is stopped before the polydispersity of the polymer product obtained exceeds 2, preferably before it exeeds 1.5.
    • 该二烷基镁由式R-(CH 2 -CH 2)n-Mg-(CH 2 -CH 2)n'-R',(EO-E')x表示,其中R和R'各自独立地表示C1-C20烃 烷基,环烷基或芳烷基的残基,支链或非取代的; n和n'相同或基本上相同,表示-CH2-CH2-键的平均数,使得由Mg承载的两个链中的每个链中的平均碳原子数大于20; E和E'相同或不同,各自表示直链或环状,支链或不支链的烷基; 和0≤x≤2,x是与二烷基镁络合的E-O-E'醚的摩尔数的平均值。 为了制备这种二烷基镁,乙烯通过催化剂Cp * 2MCl2Li(OEt2)2(Cp * =五甲基环戊二烯基配体; M =钪,钇或金属)在无水,脱氧的含烃溶液中聚合 的镧系元素; Et =乙基),在可溶于溶剂的二烷基镁存在下,式R-Mg-R'(EO-E')x,其中R,R',E,E' 和x如上所定义,作为链转移剂,并且在获得的聚合物产物的多分散性超过2之前优选在其超过1.5之前停止反应。
    • 2. 发明授权
    • Long-chain dialkylmagnesium, its preparation process and applications
    • 长链二烷基镁,其制备方法和应用
    • US5779942A
    • 1998-07-14
    • US628373
    • 1996-04-05
    • Jean-Fran.cedilla.ois PelletierKarel BujadouxXavier OlondeEmmanuel AdissonAndre MortreuxThomas Chenal
    • Jean-Fran.cedilla.ois PelletierKarel BujadouxXavier OlondeEmmanuel AdissonAndre MortreuxThomas Chenal
    • C07C51/15C07F3/02C08F4/44C08F4/60C08F10/00C08F20/06C08F110/02C08F118/02C08F210/00C08F210/02
    • C07F3/02C07C51/15C08F10/00C08F110/02C08F210/02
    • This dialkylmagnesium is represented by the formula R--(CH.sub.2 --CH.sub.2).sub.n --Mg--(CH.sub.2 --CH.sub.2).sub.n' --R', (E--O--E').sub.x, where R and R' each independently represent a C.sub.1 -C.sub.20 hydrocarbon residue, branched or not, substituted or not, of the alkyl, cycloalkyl or aralkyl type; n and n', identical or substantially identical, represent an average number of --CH.sub.2 --CH.sub.2 -- linkages such that the average number of carbon atoms in each of the two chains borne by Mg is greater than 20; E and E', identical or different, each represent an alkyl radical, linear or cyclical, branched or not; and 0.ltoreq.x.ltoreq.2, x being the average value of the number of moles of E--O--E' ether complexed to the dialkylmagnesium. In order to prepare a dialkylmagnesium of this type, ethylene is polymerized in an anhydrous, de-oxygenated hydrocarbonaceous solution by means of a catalyst Cp*.sub.2 MCl.sub.2 Li(OEt.sub.2).sub.2 (Cp*=a pentamethylcyclopentadienyl ligand; M=scandium, yttrium or a metal of the lanthanide series; Et=ethyl), in the presence of a dialkylmagnesium, soluble in the solvent, of the formula R--Mg--R', (E--O--E').sub.x, where R, R', E, E' and x are as defined above, as a chain-transfer agent, and the reaction is stopped before the polydispersity of the polymer product obtained exceeds 2, and preferably before it exceeds 1.5.
    • 该二烷基镁由式R-(CH 2 -CH 2)n-Mg-(CH 2 -CH 2)n'-R',(EO-E')x表示,其中R和R'各自独立地表示C1-C20烃 烷基,环烷基或芳烷基的残基,支链或非取代的; n和n'相同或基本上相同,表示-CH2-CH2-键的平均数,使得由Mg承载的两个链中的每个链中的平均碳原子数大于20; E和E'相同或不同,各自表示直链或环状,支链或不支链的烷基; 和0≤x≤2,x是与二烷基镁络合的E-O-E'醚的摩尔数的平均值。 为了制备这种二烷基镁,乙烯通过催化剂Cp * 2MCl2Li(OEt2)2(Cp * =五甲基环戊二烯基配体; M =钪,钇或金属)在无水,脱氧的含烃溶液中聚合 的镧系元素; Et =乙基),在可溶于溶剂的二烷基镁存在下,式R-Mg-R'(EO-E')x,其中R,R',E,E' 和x如上所定义,作为链转移剂,并且在获得的聚合物产物的多分散性超过2,优选超过1.5之前停止反应。