| abstract |
A low dielectric constant low refractive index resin is provided. A poly (alicyclic olefin) composition containing a structural unit represented by the general formula (1) and / or a precursor of the structural unit represented by the general formula (1) is subjected to oxygen at 200 ° C. or higher. A method for treating a poly (cycloaliphatic olefin) composition, comprising heating in an atmosphere having a concentration of 1000 ppm or less. (In the general formula (1), 1 represents an integer of 1 to 2, m, n, and o represent an integer of 0 to 5, and is an integer satisfying m + n ≧ 1. X is a direct bond or O, S, CH 2 , Represents any of CO, SO, and SO 2. R 1 to R 4 represent any of H, F, CF 3 , an alkyl group having 1 to 10 carbon atoms, and an aryl group having 6 to 20 carbon atoms. R 5 and R 6 each represent H or an alkyl group having 1 to 10 carbon atoms, and may be the same or different, and R 7 and R 8 represent F, CF 3 , OCF 3 and carbon number It represents any of an alkyl group of 1 to 10 and an aryl group of 6 to 20 carbon atoms, which may be the same or different.) [Selection diagram] None |