Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.
本发明公开了具有多个新戊酰取代基和多个芳酰基取代基的区域选择性取代
纤维素酯及其制造方法。此类
纤维素酯可用于薄膜,如 +A 光学薄膜和/或 +C 光学薄膜。使用此类
纤维素酯制备的光学薄膜具有多种商业用途,例如,可用作液晶显示器中的补偿膜和/或在三维技术中用于产生圆偏振光的波板。