Polymerizable composition containing reactive silsesquioxane compound

A method for producing a molded body comprising the steps of:

• charging a space between a support and a mold with a polymerizable composition;
• exposing the charged composition to light resulting in photopolymerization;
• releasing a photopolymerized product on the support from the mold;
• and
• heating the photopolymerized product together with the support;
• wherein the polymerizable composition comprises:
• (a) 100 parts by mass of reactive silsesquioxane compound obtained by polycondensation of an alkoxy silicon compound A of Formula [1] with an alkoxy silicon compound B of Formula [2] in the presence of an acid or a base, and (b) 10 to 500 parts by mass of a fluorene compound of Formula [3], where the Formulae [1], [2] and [3] are as follows:
• Ar1—Si(OR1)3 [1]
• wherein Ar1 is a phenyl group having at least one group having a polymerizable double bond or a naphthyl group having at least one group having a polymerizable double bond, and R1 is a methyl group or an ethyl group;
• Ar2—Si(OR2)3 [2]
• wherein Ar2 is a phenyl group optionally substituted by a C1-6 alkyl group, or a naphthyl group optionally substituted by a C1-6 alkyl group, and R2 is a methyl group or an ethyl group;
• and
• wherein R3 and R4 are each independently a hydrogen atom or a methyl group, L1 and L2 are each independently a phenylene group optionally having a substituent, L3 and L4 are each independently a C1-6 alkylene group, and m and n are 0 or a positive integer such that m+n is 0 to 40.

A polymerizable composition comprising

• (a) 100 parts by mass of reactive silsesquioxane compound, the 100 parts by mass of reactive silsesquioxane compound obtained by a reaction consisting of a polycondensation of an alkoxy silicon compound A of Formula [1] with an alkoxy silicon compound B of Formula [2] in the presence of an acid or a base, and optionally a solvent, and
• (b) 10 to 500 parts by mass of a fluorene compound of Formula [3], where the Formulae [1], [2] and [3] are as follows:
• Ar1—Si(OR1)3 [1]
• wherein Ar1 is a phenyl group having at least one group having a polymerizable double bond or a naphthyl group having at least one group having a polymerizable double bond, and R1 is a methyl group or an ethyl group;
• Ar2—Si(OR2)3 [2]
• wherein Ar2 is a phenyl group optionally substituted by a C1-6 alkyl group, or a naphthyl group optionally substituted by a C1-6 alkyl group, and R2 is a methyl group or an ethyl group;
• and
• wherein R3 and R4 are each independently a hydrogen atom or a methyl group, L1 and L2 are each independently a phenylene group optionally having a substituent, L3 and L4 are each independently a C1-6 alkylene group, and m and n are 0 or a positive integer such that m+n is 0 to 40.