| abstract |
The present invention discloses a cellulose based optical film material with the following structure: n nwherein R 1 is —H or —C(O)R 4 , R 4 is alkyl or aryl; R 2 is —C(O)R 5 , R 5 is alkyl or aryl; R 3 comprises one of the group consisting of: phosphinate based group, phosphonate based group, phosphonamide based group, phosphate based group, phosphoramide based group, carbamate based group, carbonate based group, and ester based group. Further, this invention also discloses a method for forming the cellulose based optical film material. |