Table 1. Molar Masses and Thermal and Optical Properties of Divanillin-Based Polyazomethines.
| polyazomethines | co-monomer of DVEH | experimental conditionsa | M̅nb [g·mol–1] | M̅wb [g·mol–1] | Đb |
 b
|
Tdc [°C] | absorptiond,e λsolmax(λfilm) [nm] | emissiond,e λsolmax(λsol) [nm] |
|---|---|---|---|---|---|---|---|---|---|
| P1A | NH2–Ph–NH2 | 4 h, silica, purified | 10 600 | 21 900 | 2.1 | 18 | 395 | 285–365 (290–370) | 430 (460) |
| P1B | NH2–Ph–NH2 | 5 min, no silica, crude | 5700 | 11 500 | 2 | 9 | 285–365 (290–370) | ||
| P1C | NH2–Ph–NH2 | 5 min, no silica, purified | 10 000 | 20 000 | 2 | 17 | |||
| P2 | NH2–Cbz–NH2 | 4 h, silica, purified | 6200 | 15 400 | 2.5 | 7 | 401 | 270–390 (ND) | 580 (ND) |
a
Under microwave irradiation at 130 °C, in toluene with APTS as a catalyst.
b
Determined by size exclusion chromatography (SEC) relative to polystyrene standards in tetrahydrofuran (THF) at 40 °C.
c
Decomposition temperature at 20% weight loss, evaluated under N2 at a heating rate of 10 °C ·min–1.
d
Determined in dichloromethane solution.
e
Determined on films obtained by drop-casting on quartz.