Low-friction polymerizable composition

A polymerizable composition comprising:

• 100 parts by weight of a phthalonitrile compound;
• 0.02 to 1.5 moles of a curing agent, based on 1 mole of the phthalonitrile compound;
• and
• 5 to 100 parts by weight of a filler;
• wherein the curing agent is an imide-based compound represented by Chemical Formula 9:
• wherein, in Chemical Formula 9, M is a tetravalent radical derived from an aliphatic, alicyclic, or aromatic compound, each of X1 and X2 is independently an alkylene group, an alkylidene group, or a divalent radical derived from an aromatic compound, and
• n is 2 to 200;
• and
• wherein the phthalonitrile compound comprises one or more compounds represented by compositional formula of Chemical Formula 1 and compounds represented by compositional formula of Chemical Formula 5:
• [R11R122SiO1/2]a[R11R12SiO2/2]b[R122SiO2/2]c[R11SiO3/2]d[R12SiO3/2]e[SiO4/2]f [Chemical Formula 1]
• wherein, in Chemical Formula 1,
• each R11 is independently a substituent of the following Chemical Formula 2,
• each R12 is independently hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, or an aryl group,
• each of a, b, and c is a positive number,
• each of d, e, and f is 0 or a positive number, and
• a+b+c+d+e+f is 1;
• wherein, in Chemical Formula 2,
• X is a group connected to the silicon atom of Chemical Formula 1, and is a single bond, an oxygen atom, a sulfur atom, —S(═O)2—, a carbonyl group, an alkylene group, an alkenylene group, an alkynylene group, —C(═O)—X1—, or —X1—C(═O)—, and X1 is an oxygen atom, a sulfur atom, —S(═O)2—, an alkylene group, an alkenylene group, or an alkynylene group,
• each of R21 to R25 is independently hydrogen, an alkyl group, an alkoxy group, a hydroxyl group, a cyano group, or a substituent of the following Chemical Formula 3, and at least one of R21 to R25 is a substituent of the following Chemical Formula 3;
• wherein, in Chemical Formula 3,
• Y is a single bond, an oxygen atom, a sulfur atom, —S(═O)2—, a carbonyl group, an alkylene group, an alkenylene group, an alkynylene group, —C(═O)—X1—, or —X1—C(═O)—, and X1 is an oxygen atom, a sulfur atom, —S(═O)2—, an alkylene group, an alkenylene group, or an alkynylene group,
• each of R31 to R35 is independently hydrogen, an alkyl group, an alkoxy group, a hydroxyl group, or a cyano group, and two or more of R31 to R35 are cyano groups;
• R51aR52bSiO(4−a−b)/2 [Chemical Formula 5]
• wherein, in Chemical Formula 5,
• R51 is a substituent of the following Chemical Formula 6,
• each R52 is independently hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, or an aryl group,
• a is 0.01 to 0.4, and
• b is 0.5 to 4;
• wherein, in Chemical Formula 6,
• X′ is a group connected to the silicon atom of Chemical Formula 5, and is a single bond, an oxygen atom, a sulfur atom, —S(═O)2—, a carbonyl group, an alkylene group, an alkenylene group, an alkynylene group, —C(═O)—X1—, or —X1—C(═O)—, and X1 is an oxygen atom, a sulfur atom, —S(═O)2—, an alkylene group, an alkenylene group, or an alkynylene group,
• each of R61 to R65 is independently hydrogen, an alkyl group, an alkoxy group, a hydroxyl group, a cyano group, or a substituent of the following Chemical Formula 7, and at least one of R61 to R65 is a substituent of the following Chemical Formula 7;
• wherein, in Chemical Formula 7,
• Y′ is a single bond, an oxygen atom, a sulfur atom, —S(═O)2—, a carbonyl group, an alkylene group, an alkenylene group, an alkynylene group, —C(═O)—X1—, or —X1—C(═O)—, and X1 is an oxygen atom, a sulfur atom, —S(═O)2—, an alkylene group, an alkenylene group, or an alkynylene group,
• each of R71 to R75 is independently hydrogen, an alkyl group, an alkoxy group, a hydroxyl group, or a cyano group, and two or more of R71 to R75 are cyano groups.