Skip to main content

Official Journal of the Japan Wood Research Society

Table 2 Characteristics of cis and trans isomers of FBD and PFBD in ethanol solution

From: A novel polymeric fluorescent brightener agent based on 4,4′-diamino-stilbene-2,2′-disulfonic acid-triazine structure: synthesis, characterization, photo-property, and performance on paper as light stabilizer, fluorescent brightener, and surface-sizing agent

 

Cis isomers λ A (nm)

Trans isomers λ A (nm)

λ F (nm)

Δσ (cm−1)

Φ F

E F

FBD

353

432

5020.9

0.261

0.215

PFBD

373

443

4823.9

0.471

0.388

  1. FBD: DSD acid-triazine fluorescent monomer, PFBD polymeric fluorescent brightener agent based on DSD acid-triazine structure