Solution processable polyamides containing thiazole units and thioether linkages with high optical transparency, high refractive index, and low birefringence

Preparation and characterization of novel microporous ultrafiltration PES membranes using synthesized hydrophilic polysulfide-amide copolymer as an additive in the casting solution

“…3 shows the FTIR spectrum of the synthesized PSA. The IR absorption band at 3356 cm À1 can be attributed to the NH stretching frequency because the FT-IR spectrum of polyamides shows the NeH stretching frequency as a broad band around 3300 cm À1 [31]. The amide band, associated with the stretching vibration of the carbonyl group appeared at 1674 cm À1 .…”

“…The amide band, associated with the stretching vibration of the carbonyl group appeared at 1674 cm À1 . The combined NeH bending and CeN stretching vibration appeared at 1532 cm À1 [31].…”

Synthesis and structure–property relationships of novel thiazole‐containing poly(amide imide)s with high refractive indices and low birefringences

“…In our previous works, an increase in solubility of polymers in low‐toxicity solvents was achieved by the introduction of flexible thioether linkages into the polymer backbones. In addition, recent studies demonstrated that bulky groups in the polymer backbone or as pendant groups can enhance the solubility and processability of aromatic PAs and PIs, without any significant reduction in thermal stability .…”

“…In recent years, our research group has been developing structurally modified PAs and PIs with improved solubility and processability through the introduction of sulfur‐containing linkages (—S—, —SO— or —SO 2 —), non‐coplanar structures and bulky pendant groups into the polymer backbones . It was found that the incorporation of both hydrogen‐bonded amide groups and flexible thioether linkages resulted in poly(amide imide)s (PAIs) with enhanced solubility and processability .…”

Synthesis of aminothiazoles: polymer-supported approaches

“…25 This class of compounds is well known as a prodrug for the treatment of type-2 diabetes, 26 and aminothiazole-4-carboxylate derivatives are known as active compounds against Mycobacterium tuberculosis H37Rv and aketoacyl-ACP synthase mtFabH. 27 Aminothiazoles are also useful in the synthesis of polymers 28,29 and dyes. 30,31 Due to the multi-dimensional importance of aminothiazoles and their derivatives, several methods have been reported in the literature for their synthesis.…”