Ammonia → Acrylamide-acrylic acid resin

HRID 1796571

반응식

HRID 1796571 반응식
[C:1]([OH:5])(=[O:4])[CH:2]=[CH2:3].[C:6]([NH2:10])(=[O:9])[CH:7]=[CH2:8].C(C=CC(N)=O)C=CC(N)=O.C(N(CC=C)CC=C)C=C.N>O>[C:1]([OH:5])(=[O:4])[CH:2]=[CH2:3].[C:6]([NH2:10])(=[O:9])[CH:7]=[CH2:8]

참가 물질

7

반응물 5

HCID 222AmmoniaHCID 6579AcrylamideHCID 6581Acrylic AcidHCID 7617TriallylamineHCID 53800990Methylene-bisacrylamide

생성물 1

HCID 62693Acrylamide-acrylic acid resin

시약·촉매·용매 1

HCID 962Water용매

반응 조건

온도
10 °C

실험 절차

148 g of acrylic acid, 372 g of acrylamide solution (40%), 0.6 g of methylenebisacrylamide, and 1.2 g of triallylamine were initially dissolved in 260 g of water in a polymerization vessel. Thereafter, the monomer solution was neutralized with 126 g of ammonia (25%) to a neutralization level of 90%. The monomer solution then was cooled to 10° C. and purged with nitrogen. Following addition of the initiator solutions (0.8 g of ABAH, 1.0 g of sodium peroxodisulfate, 0.2 g of hydrogen peroxide, and 0.05 g of ascorbic acid, each in 5 ml of water), the polymerization was initiated. The maximum temperature of 100° C. was reached within 10 minutes. After completed polymerization, the polymer was heated at 140° C. for 1.5 hours and milled to the desired grain fraction. A crosslinked acrylic acid/acrylamide copolymer as ammonium salt had been formed. The absorptive capacity for a 0.1% fertilizer solution was 132 ml/g, and the residual monomer content was 10 ppm of acrylamide and 25 ppm of acrylic acid.

후처리

  1. custompurged with nitrogen
  2. additionaddition of the initiator solutions (0.8 g of ABAH, 1.0 g of sodium peroxodisulfate, 0.2 g of hydrogen peroxide, and 0.05 g of ascorbic acid
  3. custompolymerization
  4. temperaturethe polymer was heated at 140° C. for 1.5 hours
  5. custommilled to the desired grain fraction

출처 및 근거

ORD 기록
ord-c8f53df4b4cd469c841973ee924d3c7c
출처 데이터셋
uspto-grants-2006_04
특허 번호
US07030199B1

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