A polymer for a gel polymer electrolyte, a gel polymer electrolyte and a lithium secondary battery comprising the same are disclosed herein. In some embodiments, a polymer for the gel polymer electrolyte includes a copolymer having a main chain and a first side chain and a second side chain bonded to the main chain, wherein the main chain contains a fluoropolymer, wherein the first side chain contains a siloxane group and the second side chain contains an acrylic polymer. The polymer improves stability of a gel polymer electrolyte and a lithium secondary battery including the same.

A polymer for a gel polymer electrolyte, a gel polymer electrolyte and a lithium secondary battery comprising the same are disclosed herein. In some embodiments, a polymer for the gel polymer electrolyte includes a copolymer having a main chain and a first side chain and a second side chain bonded to the main chain, wherein the main chain contains a fluoropolymer, wherein the first side chain contains a siloxane group and the second side chain contains an acrylic polymer. The polymer improves stability of a gel polymer electrolyte and a lithium secondary battery including the same.

To provide a method for producing a fluororesin composition with less coloring and excellent in mechanical strength, even by using a fluororesin powder with a heat history of being heated to the melting point or higher, and such a fluororesin composition. A method for producing a fluororesin composition, which comprises mixing a mixture of a fluororesin powder with a heat history of being heated to the melting point or higher and a water-soluble organic solvent, with a fluororesin dispersion produced by emulsion polymerization, containing no nonionic surfactant.

To provide a method for producing a fluororesin composition with less coloring and excellent in mechanical strength, even by using a fluororesin powder with a heat history of being heated to the melting point or higher, and such a fluororesin composition. A method for producing a fluororesin composition, which comprises mixing a mixture of a fluororesin powder with a heat history of being heated to the melting point or higher and a water-soluble organic solvent, with a fluororesin dispersion produced by emulsion polymerization, containing no nonionic surfactant.