2,2'-azobisisobutyronitrile

2,2′-azobisisobutyronitrile

[¦tü ¦tü‚prīm ‚a·zō·bī‚ī·sō‚byüd·ə·rə′nī·trəl]
(organic chemistry)
C8H12N4 Crystals that decompose at 107°C; soluble in methanol and in ethanol; used as an initiator of free radical reactions and as a blowing agent for plastics and elastomers.
References in periodicals archive ?
Cuprous(1) bromide CuBr, 2,2'-bipyridyne (bpy), 2,2'-azobisisobutyronitrile (AIBN), resorcinol, ethyl 4-chloroacetoacetate, methacryloyl chloride, triethyl amine (TEA), anhydrous MgSO4, 1,4-dioxane, tetrahydrofuran (THF), dichloromethane, ethanol, n-hexane, acetone were used without further purification.
Myoglobin, hemoglobin, lysozyme, cytochrome c, folic acid, 2,2'-azobisisobutyronitrile, poly (vinyl alcohol) (molecular weight: 27.000), ethylene glycol dimethacrylate, and solvents were provided by Sigma-Aldrich (St.
7-Methoxy-2,3-dihydro-[sup.1]H-inden-1-one (1.0 g, 6.2 mmol) and N-bromosuccinimide (1.2 g, 6.8 mmol) were dissolved in 20 mL of C[Cl.sub.4] and 12 mg (1 mol%) of 2,2'-azobisisobutyronitrile (AIBN) was added.
The surfactant was sodium dodecylsulfate (SDS) and the initiators used included potassium persulfate (KPS), 2,2'-azobisisobutyronitrile (AIBN), and benzoyl peroxide (BPO), all supplied from Aldrich and used as received.
The monomers were grafted into chitosan methacrylate via free radical polymerization using 2,2'-Azobisisobutyronitrile as an initiator in N,N-dimethylformamide.
It was reported that free radical polymerization of BMI can be initiated by barbituric acid (BTA) (7) or 2,2'-azobisisobutyronitrile (AIBN) (8).
Chemicals used for the synthesis; glycerin, p- chlorobenzaldehyde, p-toluene sulfonic acid, triethylamine, 2,2'-azobisisobutyronitrile (AIBN), anhydrous MgSO4, hydroquinone, 1,4-dioxane, and chemicals used for IGC studies; alcohols (ethanol, 1-propanol, 1-butanol) and hydrocarbons (n-hexane, n-heptane, n-octane and n- nonane) were purchased from Merc Chemical Co.
N, N-dimethylformamide (DMF), tetrahydrofuran (THF), hexachlorohexanol, and 2,2'-azobisisobutyronitrile (AIBN) were purchased from Sinopharm Chemical Reagent Co.
Chemicals used for the synthesis; glycerin, p-chlorobenzaldehyde, p-toluene sulfonic acid, triethylamine, 2,2'-azobisisobutyronitrile (AIBN), anhydrous MgSO4, hydroquinone, 1,4-dioxane, and chemicals used for IGC studies; alcohols (ethanol, 1- propanol, 1-butanol) and hydrocarbons (n-hexane, n- heptane, n-octane and n-nonane) were purchased from Merc Chemical Co.
The reagents used in this work include N,N'-bismalei-mide-4,4'-diphenylmethane (BMI, Beil, 95%), N-phenylmaleimide (PMI, Aldrich, 97%), barbituric acid (BTA, Merk, 99%), 2,2'-azobisisobutyronitrile (AIBN, Acros, 98%), N-methyl-2-pyrrolidinone (NMP, Sigma, 99%), N,N-dimethyl formamide (DMF, TEDIA, 99.8%), tetramethylsilane-containing dimethyl sulfoxide-[d.sub.6] (Aldrich, 99.9%), tetramethyl-silane-containing chloroform-d (Aldrich, 99.8%) and hydro-quinone (HQ, Acros, 99%).
Hexadecane (HD; Acros), 2,2'-azobisisobutyronitrile (AIBN; Showa), potassium persulfate (KPS; Sigma), sodium dodecyl sulphate (SDS; Acros), polyethylene glycol sorbitan monolaurate (Tween 20; Acros) and cetyltrimethyl ammonium chloride (CTAC; TCI) were used without further purification.