| 摘要 |
A polymer sheet for a solar cell, including a polyester base material having a carboxyl group content of 15 eq/t or less, a minute endothermic peak temperature Tmeta (° C.) of 220° C. or lower as determined by differential scanning calorimetry, and an average elongation retention ratio of 10% or more as determined after standing under conditions of 125° C. and 100% RH for 72 hours, a polymer layer provided on the polyester base material and including a composite polymer containing, in a molecule, 15% to 85% by mass of siloxane structural units represented by Formula (1) and 85% to 15% by mass of non-siloxane-based structural units: wherein, each of R1 and R2 independently represents hydrogen, halogen or a monovalent organic group; R1 and R2 may be same or different; a plurality of R1 and R2 may be same or different; and n represents an integer of 1 or more. |
