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New Fluorescing Polyanhydrides Based on Aliphatic and Aromatic Diacids
Author(s) -
Jiang H. L.,
Zhu K. J.,
Dai L. J.
Publication year - 2001
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20010301)22:6<414::aid-marc414>3.0.co;2-n
Subject(s) - sebacic acid , fluorescence , polymer chemistry , copolymer , phenylene , chemistry , materials science , photochemistry , polymer , organic chemistry , optics , physics
A series of new polyanhydrides, [—OC(O)ArXC(O)(CH 2 ) n C(O)—] m , where Ar was (substituted) phenylene, X was O or NH and n was 2, 3 or 4, was synthesized. Polyanhydride fluoresence was observed only for those with the number of methene groups in the repeating unit ( n ) being 2. Copolymers based on sebacic acids and the above chromophoric units can also emit light. The relative fluorescence intensity of poly[ p ‐(carboxyethylformamido)benzoic‐ co ‐sebacic anhydride] (P(CEFB‐SA)) and PCEFB, I P(CEFB‐SA) / I PCEFB , increases with a decrease in the fraction of SA. However, the fluorescence intensity of poly[ o ‐acetyl‐ p ‐(carboxyethylformamido)benzoic‐ co ‐sebacic anhydride] (P(ACEFB‐SA)) reaches a maximum when the ACEFB content is 50%.