Azobisisobutyronitrile → Butadiene maleic acid

HRID 66451

反応式

HRID 66451 の反応式
[CH2:1]=[CH:2][CH:3]=[CH2:4].[C:5]1(=[O:11])[O:10][C:8](=[O:9])[CH:7]=[CH:6]1.N(C(C)(C)C#N)=NC(C)(C)C#N.C(S)CCCCCCCCCCC.[S].[OH-:38].[Na+]>O.CC(C)=O>[CH2:1]=[CH:2][CH:3]=[CH2:4].[C:5]([OH:10])(=[O:11])/[CH:6]=[CH:7]\[C:8]([OH:38])=[O:9]

参加物

9

反応物 6

HCID 6547AzobisisobutyronitrileHCID 78451,3-ButadieneHCID 7923Maleic AnhydrideHCID 81951-DodecanethiolHCID 14798Sodium HydroxideHCID 5362487Sulfur

生成物 1

HCID 86738509Butadiene maleic acid

試薬・触媒・溶媒 2

HCID 180Acetone溶媒HCID 962Water溶媒

実験手順

A polymerization was carried out at 70° C. for 6 hrs. using 54.1 g. of butadiene, 98.1 g. of maleic anhydride, 1.7 g. of azobisisobutyronitrile and 36.0 g. of n-dodecylmercaptan in 750 cc. of acetone. There was obtained 61.0 g. of a white copolymer with an intrinsic viscosity of 0.08. Proportion of the end dodecylthio group in the copolymer was found by the elementary analysis for sulfur to be 5.4%. A reaction was carried out at 80° C. for 1 hr. using 16.1 g. of the copolymer, 6.0 g. of sodium hydroxide and 139 g. of water to give an aqueous solution of a butadiene-maleic acid copolymer sodium salt containing end dodecylthio groups. A composition identical in composition with the composition of Example 2 was prepared using the above-prepared aqueous solution, an aqueous calcium chloride solution at a concentration of 0.1 M/l, an aqueous solution of sodium lauryl sulfate at a concentration of 30% and water to which THPA was added in the same amount as that of the copolymer salt. Aqueous gel obtained from the composition was slower in rate of the gelation and lower in strength of the gel as compared with the aqueous gel of Example 2.

後処理

  1. customThere was obtained 61.0 g
  2. waitA reaction was carried out at 80° C. for 1 hr

出典と根拠

ORDレコード
ord-612335c55f524cf5863308144335608a
出典データセット
uspto-grants-1982_08
特許番号
US04342665

関連ノート

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