Modified polymer having organic group derived from compound having mono-nitroxide free radical

Abstract

A process for producing a modified polymer having, in the molecule thereof, an organic group(s) introduced thereinto and derived from a compound(s) having a free radical comprising reacting a polymer such as an elastomer with a compound having the free radical stable at an ordinary temperature in the presence of oxygen, after or while a carbon radical(s) is generated in the polymer, whereby the modified polymer having an improved bondability and processability is formed.

1 - 5 . (canceled)  
   
   
       6 . A modified polymer comprising an organic group derived from a compound(s) having a mono-nitroxide free radical(s), wherein said modified polymer is obtained by (1) generating a carbon radical(s) in the molecule of a polymer to be modified by at least one means for generating a carbon radical selected from the group consisting of a radical initiator, electron beam, light and radiation, and (2) reacting the polymer having the carbon radical(s) generated above with a compound(s) having the mono-nitroxide free radical stable at an ordinary temperature in the presence of oxygen.  
   
   
       7 . The modified polymer as claimed in  claim 6 , wherein said organic group is at least one group selected from the group consisting of a C 1  to C 30  alkyl group, allyl group, amino group, isocyanate group, hydroxyl group, thiol group, vinyl group, epoxy group, thiirane group, carboxyl group, carbonyl-group containing group, amide group, ester group, imide group, nitrile group, thiocyan group, C 1  to C 20  alkoxy group, silyl group and alkoxysilyl group.  
   
   
       8 . The modified polymer as claimed in  claim 6 , wherein a means for generating a carbon radical is the use of a radical initiator.  
   
   
       9 . The modified polymer as claimed in  claim 8 , wherein the amount of use of the radical initiator is 0.1 to 0.6 parts by weight based upon 100 parts by weight of said polymer.  
   
   
       10 . The modified polymer as claimed in  claim 6 , wherein the generation of the carbon radical is carried out in the presence of the compound(s) having the mono-nitroxide free radicals.