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    • 4. 发明授权
    • Macroazo compounds
    • 大麻混合物
    • US06172171B2
    • 2001-01-09
    • US09321620
    • 1999-05-28
    • Kazuo ShirakiHiroyuki TsurumotoTomomitsu Abe
    • Kazuo ShirakiHiroyuki TsurumotoTomomitsu Abe
    • C07C24500
    • C08G77/46
    • Macroazo compounds, which comprise a repeating unit composed of a moiety of the formula (a), a (b) and a moiety of the formula (c) wherein X, E, Z and T are independently a lower alkylene group, R1, R2, R3 and R4 are independently a lower alkyl group or a cyano group, R5, R6, R7 and R8 are independently a lower alkyl group or an aryl group, and m and n are independently a positive integer, those moieties being bound with one another through a carboxylic acid ester linkage or a carboxylic acid amido linkage, make it possible, for instance, in a case of using the compound as a polymerization initiator, to produce easily and at high efficiency a block polymer containing both polyorganosiloxane units and polyoxyalkylene units in its molecule.
    • 大分子化合物,其包含由式(a),a(b)和式(c)部分组成的重复单元,其中X,E,Z和T独立地为低级亚烷基,R 1,R 2 ,R 3和R 4独立地为低级烷基或氰基,R 5,R 6,R 7和R 8独立地为低级烷基或芳基,m和n分别为正整数,这些部分彼此结合 通过羧酸酯键或羧酸酰胺键,使得例如在使用该化合物作为聚合引发剂的情况下可以容易且高效地制备含有聚有机硅氧烷单元和聚氧化烯单元的嵌段聚合物 其分子。