| abstract |
A composition includes an amorphous fluoropolymer having at least one of: a segment represented by formula I: -CF(R f )-(CX 2 ) n -(CX 2 CXR) m -O-R" f O k -(CXR'CX 2 ) p -(CX 2 ) q -CF(R' f )- (I); or a terminal segment represented by formula III: R f -CF(I)- (CX 2 ) n -(CX 2 CXR) m -O-R" f O k -(CXR'CX 2 ) p -(CX 2 ) q -CF(R' f )- (III), and fluoroplastic particles having a mean particle size of less than 500 nanometers. Each X is independently F, H, or Cl; R f and R' f are each independently F or a monovalent perfluoroalkyl having 1 to 3 carbon atoms; R is F or a partially fluorinated or perfluorinated alkyl having 1 to 3 carbon atoms; R" f is a divalent fluoroalkylene having 1 to 8 carbon atoms or a divalent fluorinated alkylene ether having 1 to 20 carbon atoms and at least one ether linkage; k is 0 or 1; and n, m, p, and q are each independently an integer from 0 to 5, with the proviso that when k is 0, n + m is at least 1 and p + q is at least 1. A method of making the composition is also provided. |