Synthesis, Characterization and Applications of Poly(sulfanilic acid)‐Based Triblock Copolymer

Abstract

A triblock copolymer consists of sulfanilic acid, tetrahydrofuran and ε-caprolactone was synthesized and characterized by various analytical techniques such as Fourier transform Infrared spectroscopy, UV-vis spectroscopy, fluorescence spectroscopy, thermogravimetric analysis, differential scanning calorimetry, field emission scanning electron microscopy, gel permeation chromatography and conductivity measurements. The percent relative humidity (RH) of poly(sulfanilic acid) (PSA; P1), poly(sulfanilic acid)-g-poly(tetrahydrofuran) (PSA-g-PTHF; P2), and poly(caprolactone)-block-poly(sulfanlic acid)-g-poly (tetrahydrofuran)-block-poly(ε-caprolactone) (PCL-b-PSA-g-PTHF-b-PCL; P3) were tested at different temperatures. This study infers that the cationically charged polymers exhibited excellent percent RH. C 2015 Wiley Periodicals, Inc. Adv Polym Technol 2016; View this article online at wileyonlinelibrary.com.

Synthesis, characterization, and catalytic activity of fluorescent polyimide nanocomposites

“…The CN stretching was noted at 1400 cm −1 . The aromatic dianhydride COC linkage can be seen at 1017 cm −1 . The aromatic bending vibrations can be seen at 734, 820, and 862 cm −1 .…”

Synthesis, characterization and sustainable drug release activity of drug bridged diblock copolymer

“…The carbonyl stretching at 1692 cm −1 is due to the carbonyl stretching of PAH units. Another one important peak appeared at 1589 cm −1 which is due to the formation of tetrahydrofuroniam ion [31]. The aromatic C-H bending was noted at 662, 734, and 796 cm −1 .…”

“…A doublet peak at 1696 cm −1 is responsible for the carbonyl stretching of PAH ( Table 1). The tetrahydrofuronium ion appeared at 1577 cm −1 [31]. The aromatic stretching was noted at 615 and 789 cm −1 .…”

“…The chemical structure of PCL-Gen-PTHF was further confirmed by 13 C-NMR spectrum. The carbonyl carbon signals of PCL and PAH appeared at 173 ppm [31]. The aromatic ring carbon signals appeared at129 ppm.…”

“…The interface regions between hydrophilic and hydrophobic segments are responsible for the polymer nanoparticle formation. The formation of polymer nanoparticles is a key element for an effective drug carrier material [31]. The surface morphology of the polymer can be altered to certain level with the help of an initiator (or) a catalyst.…”