Fluorine‐containing polymers. III. Polymers and copolymers of 1,1‐dihydroperfluoroalkyl acrylates

The preparation and properties of the homopolymers and butadiene copolymers of the 1,1‐dihydroperfluoroalkyl acrylates, CF 3 (CF 2 ) n CH 2 OCOCHCH 2 . where n has been varied from 0 to 8, are described. Up through the hexyl member, the homopolymers are rubbers which can be vulcanized and which show outstanding resistance to solvents, particularly hydrocarbons. The octyl member can be obtained in either crystalline or rubbery form. The effect of side‐chain length on glass transition temperature and solubility is discussed. Incorporation of butadiene increases flexibility at low temperatures, although at some sacrifice of solvent resistance.