Acrylic Acid (AA) Based Polyaniline Composite for Liquified Petroleum Gas (LPG) Sensors

N-substituted PANI-ES was obtained from N-phenyl-β-alanine (N-substituted aniline). N-phenyl-β-alanine was synthesized chemically from methyl acrylate and aniline precursor. ESI-MS, H1NMR spectroscopy and FTIR spectroscopy are employed to characterise the N-phenyl-β-alanine for structure elucidation. The structure and properties of corresponding polymers were investigated by X-ray diffraction, FTIR, UV-Visible, H1NMR, FESEM, solubility, and DC conductivity. On the basis of experimental results of prepared N-substituted aniline monomer and its corresponding polymer is proposed. At room temperature, the average DC conductivity of as-prepared PANI polymers was found in semiconducting range, which is 0.153 S/cm for poly (3-methyl (phenyl amino) propionic acid. We also were analysed temperature dependent DC conductivity with and without magnetic field of as prepared PANI polymers to understand the conduction mechanism and it was followed variable-range hopping (VRH) process. In addition, we were discussed the response of liquefied petroleum gas (LPG) with polyaniline based sensor materials.

Stitching of tyrosine and 10H-acridin-9-one: turn-ON fluorescence in the narrow pH range 7.4–8.5 and intracellular labelling of cancer cells

We tailored 10H-acridin-9-one and (S)-tyrosine into 3-(4-hydroxyphenyl)-2-[(9-oxo-9,10-dihydroacridine-4-carbonyl) amino]propionic acid (2).

Synthesis of Amino Propionic Acid Modified Polypropylene-Graft-Styrene Fiber

The amino propanoic acid chelating fiber (APACF) was prepared by immobilizing tetraethylenepentamine (TEPA) and propionic acid on polypropylene-graft-styrene (PP-g-ST). The synthetic conditions of amino PP-g-ST fiber and APACF were optimized by the way of L16(45) orthogonal experiment, and the optimizing reaction conditions were obtained. APACF was characterized by FTIR, and the changes of IR spectrum verified the introduction of carboxyl groups to the raw material. The experimental results revealed that the APACF can be used to remove and enrich copper from aqueous solution.