%0 Journal Article
%T Birefringent properties of poly(phosphonate)s and poly(thiophosphonate)s derived from various bisphenols
%J -
%D 2019
%R https://doi.org/10.1038/s41428-019-0200-9
%X The birefringent properties of poly(phosphonate)s and poly(thiophosphonate)s possessing various bisphenol structures were investigated. The CR values (orientational birefringence) of the poly(phosphonate)s and the poly(thiophosphonate)s range from £¿0.3£¿¡Á£¿10£¿9 to + 1.3£¿¡Á£¿10£¿9£¿Pa£¿1 and from £¿0.6£¿¡Á£¿10£¿9 to +£¿0.8£¿¡Á£¿10£¿9£¿Pa£¿1, respectively, which are lower than those of the corresponding bisphenol A-based polymers. The CD values (photoelastic birefringence), which range from +£¿4.0£¿¡Á£¿10£¿11 to +£¿4.9£¿¡Á£¿10£¿11£¿Pa£¿1, are also lower than those of the corresponding bisphenol A-based polymers
%U https://www.nature.com/articles/s41428-019-0200-9