Back 
         
        Short Report    
         
        ScienceAsia 9 (1983): 191-196 |doi: 10.2306/scienceasia1513-1874.1983.09.191 
          
        STUDY OF THE CHEMICAL DEGRADATION OF NATURAL RUBBER AND SYNTHETIC CIS-1,4-POLYISOPRENE BY PHENYLHYDRAZINE-IRON (II) CHLORIDE SYSTEM USING GEL PERMEATION CHROMATOGRAPHY
          
        SAUVAROP BUALEK
          ABSTRACT: Degradation of cis-1,4-polyisoprene and natural rubber by phenylhydrazine-iron (II) chloride system were investigated in tetrahydrofuran solution at 30 oC in the
opened container. Gel permeation chromatography was used to follow the reactions. It was found that the number-average molecular weight of the rubbers were reduced to nearly one-half in the first few hours and the shape of the molecular weight distribution curves was essentially unchanged. 
            Download PDF 
           
          Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand. 
          Received 10 June 1983 
             |