polyacrylamide (pam) and copolymers – sigma-aldrich in france

polyacrylamide (pam) and copolymers – sigma-aldrich in france
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  • What is polyacrylamide (PAM)?
  • The homo-polymer Polyacrylamide (PAM) (average M.W. 5,000,000–6,000,000) was of laboratory grade in the form of powder. It was purchased from Poly Science, Inc. (Warrington, PA, USA).
  • Is acrylamide a copolymer?
  • Even though these products are often called 'polyacrylamide', many are actually copolymers of acrylamide and one or more other species, such as an acrylic acid or a salt thereof. These copolymers have modified wetting and swellability.
  • What is the standard state of polyacrylamide?
  • Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ?
  • ) Polyacrylamide (abbreviated as PAM or pAAM) is a polymer with the formula (-CH 2 CHCONH 2 -).
  • Is polyacrylamide contaminated with acrylamide?
  • Polyacrylamide is of low toxicity but its precursor acrylamide is a neurotoxin and carcinogen. Thus, concerns naturally center on the possibility that polyacrylamide is contaminated with acrylamide. Considerable effort is made to scavenge traces of acrylamide from the polymer intended for use near food.