Radically Polymerizable Sulfur-Containing Compound and Radically Polymerizable Sulfur-Containing Polymer

Abstract

The invention relates to a radically polymerizable sulfur-containing compound having a group represented by formula (1) and at least one selected from among groups represented by formulae (2) to (4), a radically polymerizable sulfur-containing polymer obtained by subjecting the compound to cationic ring-opening (co)polymerization, production process thereof, a composition containing the sulfur-containing compound and/or the sulfur-containing polymer, and a cured product obtained from the composition. (R 1 to R 6 each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.) The cured product obtained from the radically polymerizable sulfur-containing compound and the radically polymerizable sulfur-containing polymer having a high refractive index is useful as an optical material, especially for lens material.

1 - 10 . (canceled) 
   
   
       11 . A radically polymerizable sulfur-containing polymer having a group represented by formula (101), which is obtained by subjecting the radically polymerizable sulfur-containing compound to cationic ring-opening polymerization 
     
       
         
         
             
             
         
       
     
     wherein the radically polymerizable sulfur-containing compound comprising a group represented by formula (1) 
     
       
         
         
             
             
         
       
     
     wherein R 1  to R 3  each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and at least one selected from among groups represented by formulae (2) to (4) 
     
       
         
         
             
             
         
       
     
     wherein R 4  to R 6  each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. 
   
   
       12 . The radically polymerizable sulfur-containing polymer as claimed in  claim 11 , which is obtained by subjecting to ring opening polymerization
 (A) at least one compound comprising a group represented by formula (1)   
     
       
         
         
             
             
         
       
     
     wherein R 1  to R 3  each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and at least one selected from among groups represented by formulae (2) to (4) 
     
       
         
         
             
             
         
       
       wherein R 4  to R 6  each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and 
       (B) another different compound having a group represented by formula (1) 
     
     
       
         
         
             
             
         
       
       wherein R 1  to R 3  have the same meanings as defined above. 
     
   
   
       13 . The radically polymerizable sulfur-containing polymer as claimed in  claim 11 , having at least one structural unit represented by formula (11) 
     
       
         
         
             
             
         
       
       wherein one or more number of Q's are present in the polymer, and the Q in each structural unit independently represents a group represented by any one of formulae (12) to (17), 
     
     
       
         
         
             
             
         
       
       wherein R 4  to R 6  each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. 
     
   
   
       14 . The radically polymerizable sulfur-containing polymer as claimed in  claim 13 , wherein all of R 4  to R 6  are hydrogen atoms. 
   
   
       15 . The radically polymerizable sulfur-containing polymer as claimed in  claim 11 , having a weight average molecular weight of 6,000 or less in terms of polystyrene, in measurement by gel permeation chromatography. 
   
   
       16 . The radically polymerizable sulfur-containing polymer as claimed in  claim 11 , which is used for optical material. 
   
   
       17 - 29 . (canceled)