Patent ID: 7598318

Claim:
Poly(organophosphazenes) represented by the following Formula 1: wherein R is a methyl or ethyl group; R′ is selected from the group consisting of CH 2 CH(CH 3 ) 2 , CH 2 C 6 H 5 , CH(CH 3 )CH 2 CH 3 and CH 3 ; R″ is selected from the group consisting of CH 2 COOR, CH 2 CH 2 COOR, CH 2 CH(CH 3 ) 2 , CH 2 C 6 H 5 , CH(CH 3 )CH 2 CH 3 and CH 3 ; R′″ is a group selected from the group consisting of CH 2 COOR, CH 2 CH 2 COOR and H, wherein R is the same as defined above; n is a number between from 30 to 100; x is a number selected from the integers of 3, 4, 7, 12 and 16; y is a number between from 0.5 to 1.5; a equals to 1; b and c equal to 0 or 1.