Supercritical polymerization preparation method and application of water-soluble solid styrene-acrylic resin

Supercritical polymerization preparation method and application of water-soluble solid styrene-acrylic resin

  • CN 101,735,370 A
  • Filed: 12/09/2009
  • Published: 06/16/2010
  • Est. Priority Date: 12/09/2009
  • Status: Active Application
First Claim
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1. the preparation method of a water-soluble solid styrene-acrylic resin is characterized in that:

  • Feeding supercutical fluid in stirred autoclave is reaction medium, add styrene monomer, acrylic monomer, initiator and chain-transfer agent and carry out Raolical polymerizable, reaction product removes volatiles and supercutical fluid through exhaust decompression, thereby obtains purified water-soluble solid styrene-acrylic resin;

    Wherein said temperature of reaction is equal to or higher than the polymerization reaction medium critical temperature, and reaction pressure is equal to or higher than the polymerization reaction medium emergent pressure;

    Described critical temperature is 31.1 ℃

    , and emergent pressure is 7.38MPa.

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