Step Polymerization

MMC equations (the underlying logic in dynamic research) for step polymerization, take the polyester reaction as an example.

MMC equations

• Law of mass action
  • • 0.1<K<10, symmetry mechanism • Single molecule reaction balances instantly • The positive and negative reaction rates at a certain moment do not affect each other
    • Simultaneous
• Material conservation
  • • • [COOH]=[OH]
• Material characteristics
  • specific materials
  • body molecule
  • [COOH]=[OH] , linear molecule
• f=2
  • (positive)
  • (negative)
  • solve
  • closed
  • • self-catalyzed
      • 0.8<p<0.95
      • p<0.8
    • added acid
• decisive step
• quasi-equilibrium