Fluorine-based polymer with low dielectric constant and fluorine-based polymer composition comprising same

A fluorine-based polymer composition comprising a fluorine-based polymer represented by Formula 1 below and an organic solvent:

• (wherein in Formula 1 above,
• Rf is a C3-20 fluorinated branched alkyl, containing 2 to 4 of at least one of CF2 and CF3;
• R1-4 are each independently hydrogen (H), methyl (CH3), or halogen group;
• R5 is C1-20 straight alkyl or C3-20 branched alkyl;
• with respect to molar ratio of x+y+p+q=100, x is 5-35, y is 35-65, p is 1-20, and q is 10-30;
• and
• z is an integer of 1-5).

A fluorine-based polymer film comprising a fluorine-based polymer represented by Formula 1 below:

• (wherein in Formula 1 above,
• Rf is a C3-20 fluorinated branched alkyl, containing 2 to 4 of at least one of CF2 and CF3;
• R1-4 are each independently hydrogen (H), methyl (CH3), or halogen group;
• R5 is C1-20 straight alkyl or C3-20 branched alkyl;
• with respect to molar ratio of x+y+p+q=100, x is 5-35, y is 35-65, p is 1-20, and q is 10-30;
• and
• z is an integer of 1-5).