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    • 5. 发明授权
    • Tertiary-aliphatic {60 -(peracyl)azo compounds as initiators for the polymerization of unsaturated polyesters and vinyl monomers
    • 叔碳酸酯(60-(全酰基))偶氮化合物作为不饱和聚酯和乙烯基单体聚合的引发剂
    • US3917744A
    • 1975-11-04
    • US45063974
    • 1974-03-13
    • PENNWALT CORP
    • MACLEAY RONALD EDWARDSHEPPARD CHESTER STEPHEN
    • C07C409/40C07C409/42C08F4/04C08F283/01C08F299/04C08L67/06C07C107/02
    • C08F299/0457C08F4/04C08F283/01C08F4/00
    • D R A W I N G
      New tertiary-aliphatic alpha-(peracyl)azo compounds represented by the formula

      PROCESSES FOR PREPARING I where R is
      and n is 1 or

      and n is 2 by reacting a t-aliphatic Alpha -chloroazo compound

      with peracids or their salts selected from

      with the corresponding acylating agent; and the use of these compounds as polymerization initiators for vinyl monomers and as curing agents for resins. For example, 2-t-butylazo-2(acetylperoxy)-4-methylpentane is prepared by reacting the sodium salt of 2-t-butylazo-2-hydroperoxy-4-methylpentane with acetyl chloride; and the product used to polymerize vinyl chloride at 30*C. and to cure unsaturated polyester-styrene resins at room temperature.

      processes for preparing compounds I by reacting t-aliphatic azo compounds of the formula
    • 由式R1 |(R“)3C-N = N-C-OO ---- R(I)表示的新的叔脂族α-(全酰基)偶氮化合物; | R2n通过使叔脂族α-氯偶氮化合物R1 |(R“)3C-N = NC反应制备I的制备方法,其中R为O,PARALLEL-CR 3,n为1或O为ORA,PARALLEL PARALLEL-CR6C-,n为2 -Cl(II)| R2与过酸或其盐选自O平行R 3 -COOM(III)和OO平行平行MOOCR6COOM(IV); 通过使式R1 |(R“)3C-N = N-C-OOM(V)| R 2的叔脂族偶氮化合物与相应的酰化剂反应来制备化合物I的方法; 以及这些化合物作为乙烯基单体的聚合引发剂和作为树脂固化剂的用途。 例如,2-叔丁基偶氮-2-(乙酰基过氧基)-4-甲基戊烷是通过使2-叔丁基偶氮-2-氢过氧基-4-甲基戊烷的钠盐与乙酰氯反应制备的; 和用于在30℃下聚合氯乙烯并在室温下固化不饱和聚酯 - 苯乙烯树脂的产品。