| abstract |
In the present invention, a spiral chiral polymer having an optically active weight-average molecular weight of 50,000 to 1,000,000 and having a degree of crystallinity of 20% to 80% obtained by the DSC method, and a reference thickness measured by a microwave transmission type molecular alignment meter of 50 占 퐉 , A product of the normalized molecular orientation MORc and the degree of crystallinity is 25 to 250, is provided. |