Block copolymer and method for preparing the same

Abstract

A block copolymer is disclosed. The block copolymer has a structure of formula (V) below:[D]x-[E]y-[F]z  (V)wherein D, E, and F are each independently a compound of formula (VI) below, and D, E, and F are different from each other; and x, y, and z are each independently an integer from 1 to 40;wherein A2 is O or S; R7 is H or a C1-6 alkyl; and R8 is a C1-12 alkyl, (CH2)qN(R11)2, CH2(CH2OCH2)rCH2N(R12)2, or CH2(CH2OCH2)sCH2OR13, wherein R11, R12, and R13 are each independently a C1-6 alkyl; and q, r, and s are each independently an integer from 1 to 10.

What is claimed is: 
     
         1 . A block copolymer, having a structure of formula (V) below:
   [D] x -[E] y -[F] z   (V)
   wherein D, E, and F are each independently a compound of formula (VI) below, and D, E, and F are different from each other; and   x, y, and z are each independently an integer from 1 to 40;   
       
         
           
           
               
               
           
         
         wherein A 2  is O or S; 
         R 7  is H or a C 1-6  alkyl; and 
         R 8  is a C 1-12  alkyl, (CH 2 ) q N(R 11 ) 2 , CH 2 (CH 2 OCH 2 ) r CH 2 N(R 12 ) 2 , or CH 2 (CH 2 OCH 2 ) s CH 2 OR 13 , wherein R 11 , R 12 , and R 13  are each independently a C 1-6  alkyl; and q, r, and s are each independently an integer from 1 to 10. 
       
     
     
         2 . The block copolymer according to  claim 1 , wherein x, y, and z are each independently an integer from 1 to 20; A 2  is O; R 7  is H or a C 1-3  alkyl; and R 8  is a C 1-8  alkyl, (CH 2 ) q N(R 11 ) 2 , CH 2 (CH 2 OCH 2 ) r CH 2 N(R 12 ) 2 , or CH 2 (CH 2 OCH 2 ) s CH 2 OR 13 , wherein R 11 , R 12 , and R 13  are each independently a C 1-3  alkyl; and q, r, and s are each independently an integer from 1 to 6. 
     
     
         3 . The block copolymer according to  claim 1 , comprising an end group represented by formula (VII) below: 
       
         
           
           
               
               
           
         
         wherein R 1  is a C 1-6  alkyl; and 
         R 2  and R 3  are each independently H or a C 1-6  alkyl. 
       
     
     
         4 . The block copolymer according to  claim 1 , wherein at least one of D, E, and F is a compound of formula (VIII) below: 
       
         
           
           
               
               
           
         
         wherein R 7  is H or a C 1-6  alkyl; and 
         R 8  is (CH 2 ) q N(R 11 ) 2  or CH 2 (CH 2 OCH 2 ) r CH 2 N(R 12 ) 2 , wherein R 11  and R 12  are each independently a C 1-6  alkyl; and q and r are each independently an integer from 1 to 10. 
       
     
     
         5 . The block copolymer according to  claim 4 , wherein R 7  is H or a C 1-3  alkyl; and R 8  is (CH 2 ) q N(R 11 ) 2  or CH 2 (CH 2 OCH 2 ) r CH 2 N(R 12 ) 2 , wherein R 11  and R 12  are each independently a C 1-3  alkyl; and q and r are each independently an integer from 1 to 6.