Abstract 
         Immobilization of a platinum catalyst was carried out on the basis of the polymer
            incarcerated (PI) method. The PI platinum catalyst thus prepared showed high activity
            in hydrosilylation, and recovery and reuse of the catalyst were attained without loss
            of activity. Application of this catalyst to hydrogenation is also reported.
         
            
Key words 
         
         
            immobilization - platinum - polymer - hydrosilylation - hydrogenation
          
       
    
   
      
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