Copolymer, film composition and composite material employing the same

A copolymer, which is a copolymerization product of a composition, wherein the composition comprises a monomer (a), a monomer (b) a monomer (c), and an alpha-olefin, wherein the monomer (a) is a compound having a structure of Formula (I), the monomer (b) is a compound having a structure of Formula (II), and the monomer (c) is a compound having a structure of Formula (III)

• wherein R1 is hydrogen, chlorine, fluorine, hydroxyl group, cyano group, amino group, C1-6 alkyl group, C1-6 fluoroalkyl group, C1-6 alkoxy group, C1-6 alkylamino group, C1-6 aminoalkyl group, thiol group, C1-6 alkylthio group, C1-6 thioalkyl group, C1-6 alkylsulfonyl group, C1-6 alkoxysulfonyl group, C2-6 alkanoyl group, C2-6 alkanoyloxy group, C2-6 alkoxycarbonyl group, or C6-12 aryl group;
• R2 and R3 are independently hydrogen, chlorine, fluorine, hydroxyl group, formyl group, acrylate group, methacrylate group, cyano group, isocyanate group, amino group, C1-6 alkyl group, C4-8 cycloalkyl group, C1-6 fluoroalkyl group, C2-6 alkenyl group, C5-8 cycloalkenyl group, C2-6 alkynyl group, C1-6 alkoxy group, C1-6 alkylol group, C2-6 alkoxyalkyl group, C1-6 alkylamino group, C1-6 aminoalkyl group, C2-6 alkanoyl group, C2-6 alkanoyloxy group, C2-6 alkoxycarbonyl group, carbamoyl group, C2-7 alkylcarbamoyl group, C1-9 silyl group, C1-9 siloxy group, or C6-12 aryl group;
• R4 is hydrogen, chlorine, fluorine hydroxyl group, C1-6 alkyl group, C1-6 fluoroalkyl group, C2-6 alkenyl group, C1-6 alkylamino group, C1-6 aminoalkyl group, carbamoyl group, or C2-7 alkylcarbamoyl group;
• R5 is hydrogen, chlorine, fluorine, hydroxyl group, C1-6 alkyl group, C1-6 fluoroalkyl group, C2-6 alkenyl group, C1-6 alkylamino group, C1-6 aminoalkyl group, carbamoyl group, C2-7 alkylcarbamoyl group, C2-6 alkanoyl group, C2-6 alkanoyloxy group, C2-6 alkoxycarbonyl group, C1-9 silyl group, C1-9 siloxy group, or C6-12 aryl group;
• and, R6 is hydrogen, chlorine, fluorine, cyano group, C1-6 alkyl group, C1-6 fluoroalkyl group, C2-6 alkenyl group, C1-6 alkylamino group, C1-6 aminoalkyl group, carbamoyl group, C2-7 alkylcarbamoyl group, C2-6 alkanoyl group, C2-6 alkanoyloxy group, C2-6 alkoxycarbonyl group, C1-9 silyl group, C1-9 siloxy group, or C6-12 aryl group, and
• wherein an amount of the alpha-olefin is 0.1 mol % to 80 mol %, based on the total mole of the monomer (a), monomer (b), and monomer (c).