Regioselectively functionalized synthesis of poly(amino naphthalene disulfonic acid)

Biological Activity and Optical Sensor Properties of Green Synthesis Polymer

“…Enzymatic polymerization was carried out by bonding from OH and NH2 functional groups. The observation of 1384 cm −1 C−N stretching vibration and 1102 cm −1 C−O−C stretching vibration confirms this [27–29] …”

“…The ipso carbon of the NH2 group was assigned at 132.02 ppm, and the −C−N−C− peak of the bonding at 143.42 ppm. The peak of C−C bonding formed by the dispersion of radicals in the ring was observed at 142.74 ppm [27–29] . Other carbon signals related to polymerization are also seen in Figure 3.…”

“…The ChemistrySelect peak of CÀ C bonding formed by the dispersion of radicals in the ring was observed at 142.74 ppm. [27][28][29] Other carbon signals related to polymerization are also seen in Figure 3. Due to the proton elimination of the carbons at the points where the monomer units are attached to each other, the peak intensity decreases and as a result of the bonding, new peaks belonging to the carbons with different chemical environments are seen.…”

“…Proton signals belonging to the sulphonic acid group at 11.04 ppm, the hydroxyl group at 10.43 ppm, the amine group at 5.35 ppm, and the aromatic ring in the range of 8.14-7.29 ppm were seen. [27][28][29] The number of peaks were observed to have increased and the peaks expanded in the 1 H-NMR spectrum of the Poly-enz. This expansion difference is due to the presence of repeating monomer units with different chemical environments.…”

“…The observation of 1384 cm À 1 CÀ N stretching vibration and 1102 cm À 1 CÀ OÀ C stretching vibration confirms this. [27][28][29] ChemistrySelect 1…”