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Urea-Formaldehyde Resin

Forming urea-formaldehyde resin.

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2.9 MB, 45 seconds

File: MOVIES/TRAM16/0541500.MOV

Voiceover
Aqueous formaldehyde is added to solid urea. The mixture is stirred. A few drops of concentrated sulfuric acid are added to the clear solution. A white solid polymer is produced in a highly exothermic reaction. The reaction involves condensation between the nucleophilic nitrogen of urea with the electrophilic carbonyl carbon of formaldehyde. A branched copolymer is formed.

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Design, Text and Demonstrator:  
  Gary Trammell University of Illinois at Springfield, Springfield, IL 62794
Videographer/Editor:  
  Steve Dykema University of Illinois at Springfield, Springfield, IL 62794
Voice:  
  Margaret Biddle University of Wisconsin - Madison, Madison, WI 53706
Audio Production:  
  Greg Minix University of Wisconsin - Madison, College of Engineering, Madison, WI 53706
  Jerrold J. Jacobsen University of Wisconsin - Madison, Madison, WI 53706