| abstract |
A curable composition comprising a hydrogen-bonded prepolymer, a plasticizer, and an optional cross-linking agent. Plasticizers include reactive plasticizers having the structure (I), (II) or (III), wherein X is -OR 1 , -N(R 1 ) 2 , -R 4 -OR 1 or -R 4 - N(R 1 ) 2 , wherein R 1 at each occurrence is independently hydrogen or C 1-6 alkyl, and R 4 is C 1-12 alkylene; y is zero or 1; z is zero or 1 R 2 is C 1-12 alkyl; and when z is 1, R 3 is C 1-12 alkyl, or when z is 0, R 3 is C 1-12 alkyl or H. |