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picture1_Bulk Polymerization Example 91670 | Lecture13


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File: Bulk Polymerization Example 91670 | Lecture13
chemical engineering 160 260 polymer science and engineering lecture 13 polymerization techniques dispersed systems objectives to outline polymerization techniques and describe to outline polymerization techniques and describe approaches to reducing ...

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      Chemical Engineering 160/260
      Polymer Science and Engineering
           Lecture 13:
       Polymerization Techniques -
         Dispersed Systems
                        Objectives
       ! To outline polymerization techniques and describe
       ! To outline polymerization techniques and describe
         approaches to reducing viscosity and improving thermal
         approaches to reducing viscosity and improving thermal
         control that involve dispersion of the monomer in water.
         control that involve dispersion of the monomer in water.
       ! To show how dispersed systems may be stabilized from
       ! To show how dispersed systems may be stabilized from
         aggregation by modification of the hydrocarbon/water
         aggregation by modification of the hydrocarbon/water
         interface.
         interface.
                        Outline
          ! Polymerization Techniques
          ! Polymerization Techniques
            " Bulk
            " Bulk
            " Solution
            " Solution
            " Suspension
            " Suspension
            " Emulsion
            " Emulsion
         Bulk (Mass) Polymerization
     General Description:
        Monomer
        Initiator
               •  Carried out to high conversion
               •  Free radical kinetics apply
               •  Used for ethylene, styrene, methyl
                   methacrylate
     Advantages:
          •  Minimum contamination of product
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...Chemical engineering polymer science and lecture polymerization techniques dispersed systems objectives to outline describe approaches reducing viscosity improving thermal control that involve dispersion of the monomer in water show how may be stabilized from aggregation by modification hydrocarbon interface bulk solution suspension emulsion mass general description initiator carried out high conversion free radical kinetics apply used for ethylene styrene methyl methacrylate advantages minimum contamination product...

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