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Table 1 Optical properities of polyamides 12-25, polyhydrazides 31, 32 and poly(1,3,4-oxadiazoles) 33, 34

From: Synthesis and characterization of thermally stable aromatic polyamides and poly(1,3,4-oxadiazole-amide)s nanoparticles containing pendant substituted bezamides

Polymer No aλabs(nm) εb(M-1 cm-1) cλem(nm) (dλexat 300 nm)
12 292 2400 345, 647
13 288 4300 361, 696
14 286 20000 343, 642
15 278 7100 341, 650
16 284 12000 345, 650
17 276 4600 338, 646
18 297 17200 364, 407
325 18100 420, 744
19 285 6900 362, 644
323 9000  
20 295 23500 347, 642
21 291 8500 340, 652
23 282 8700 341, 646
24 309 25000 346, 658
25 286 5200 336, 376
305 5700 400, 684
31 280 7700 357, 502
32 274 8400 363 (w), 427
33 283 10000 360 (w), 431
34 277 6800 363 (w), 428, 529 (w), 637(sh)
  1. aλabs: maximum wavelengths of absorption.
  2. bε: the molar absorption coefficient calculated from Beer-Lambert equation
  3. (A = ε x c x l); where A is absorbance, c is concentration, l = 1 cm).
  4. cλem: maximum wavelengths of emission.
  5. dλex: maximum wavelengths of excitation.