13472-08-7Relevant articles and documents
Oxidation of alkylcyanohydrazines to azo-bis nitriles using Oxone-potassium bromide in aqueous medium
Tamhankar,Desai, Uday V.,Mane,Kulkarni,Wadgaonkar
, p. 3643 - 3646 (2002)
Azo-bis nitriles were prepared in good yields and high purity by oxidation of corresponding 1,2-bis-dialkylcyano hydrazines using oxone-potassium bromide in aqueous medium.
Azobisisobutyronitrile preparation method
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Paragraph 0022, (2019/01/08)
The present invention relates to an azobisisobutyronitrile preparation method, which comprises: carrying out a reaction on sodium hypochlorite, ammonia and acetone to prepare an acetone azine synthesis solution; purifying to obtain acetone azine with a mass content of not less than 90%; reacting with hydrogen cyanide to obtain hydrogenated azobisisobutyronitrile; and oxidizing with chlorine gas orhydrogen peroxide to obtain an azobisisobutyronitrile solution. Compared to the conventional process, the method of the present invention can simplify the production process, shorten the production cycle, and reduce the consumption of steam and circulating water so as to increase the yield of azobisisobutyronitrile and reduce the production cost.
FLUORINATED ETHER URETHANES AND METHODS OF USING THE SAME
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, (2011/10/12)
Compounds comprising end groups represented by formula (Rf-Q)a-X-(A-)b and compounds comprising the reaction product of components comprising a multifunctional isocyanate compound and a fluorinated compound represented by formula (Rf-Q)a-X—(Z)b. Each Rf is independently a partially fluorinated or fully fluorinated group selected from RfA(O)2CHL′-(CF2)n—; [RfB—(O)1—C(L)H—CF2—O]m—W—; CF3CFH—O—(CF2)p—; CF3—(O—CF2)Z—; and CF3—O—(CF2)3—O—CF—. Methods of making an article having a surface using the fluorinated compounds and treated articles are also disclosed.