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A series of functional copolymers was synthesized by an emulsion polymerization of N-ethylaniline (EA) and aniline (AN) in the presence of sodium dodecylbenzene sulfonate in HCl. Several important polymer parameters including the polymerization yield, molecular weight, solubility, film formability, solvatochromism, thermochromism, and alterable electrical conductivity were systematically studied by...
Oxidative copolymerization of 8-aminoquinoline (AQ) and o-anisidine (AS) using ammonium persulfate as oxidant was studied under various polymerization conditions and fine and uniform copolymer particles of several micrometers, determined by laser particle size and atomic force microscopic analyses, were synthesized simply. The polymerization yield, molecular weight, solubility, electroconductivity,...
A series of copolymers were prepared by an oxidative polymerization of pyrrole (PY) and 2-ethylaniline (EA) in HCl. The polymerization process was followed by tracking open-circuit potential and temperature of the reaction solutions. The fine particles of the PY/EA copolymers obtained in situ were further N-nitrosated for the first time in order to improve their solubility. The size, structure, and...
Two series of copolymers were synthesized by an oxidative polymerization of 2-ethylaniline (EA) with 2-anisidine (AS) or 5-sulfonic-2-anisidine (SA) for a detailed comparative study between EA/SA and EA/AS copolymers. The preparation, structure, and properties of the copolymers were systematically studied by FT-IR, high-resolution 1 H NMR, UV-vis, elementary analysis, GPC, laser particle size...
A series of partial ladder copolymers were synthesized by chemically oxidative polymerization of m-phenylenediamine (MPD) and o-ethoxyaniline (EOA) using inorganic oxidants in inorganic acidic aqueous media. The polymerization yield, intrinsic viscosity, solubility, and thermal property of the copolymers were systematically studied by changing the comonomer ratio, initial polymerization temperature,...
A series of copolymers were synthesized by chemically oxidative polymerization of p-phenylenediamine (PPD) and o-phenetidine (PHT) in acidic aqueous media. The polymerization yield, intrinsic viscosity, and solubility of the copolymers were comprehensively studied by changing the comonomer ratio, polymerization time and temperature, oxidant, monomer/oxidant ratio, and acidic medium. As-prepared fine...
A homogeneous dense membrane of bisphenol A poly(ether ether ketone ketone) (PEEKK) has been prepared by a solution casting technique with chloroform as solvent and characterized by wide-angle X-ray diffraction and tensile tester. Permeating characteristics of five pure gases through the membrane has been described systematically. The permeability, diffusivity, solubility, and their selectivities...
A series of copolymers were synthesized by chemically oxidative polymerization of pyrrole (PY) and o-anisidine (AS) in acidic aqueous medium. The yield, intrinsic viscosity, and solubility of the copolymers were studied by changing the monomer molar ratio, initial polymerization temperature, oxidant, ratio of monomer over oxidant, acidic medium, and adding dodecylbenzene sulfonate. As prepared PY/AS...
Chemically oxidative polymerization of o-phenylenediamine and 2,3-xylidine (XY) with three molar ratios was performed by using ammonium persulfate as an oxidant in boiling glacial acetic acid. The polymerization yield decreases significantly but the intrinsic viscosity of the polymers remains almost constant with increasing feed content of XY monomer. The resulting polymers were characterized by ...
A series of copolymers was synthesized by oxidative polymerization of 2-pyrimidylamine (MA) and o-anisidine (AS) with five monomer ratios using ammonium persulfate as an oxidant in 1M HCl aqueous solution at room temperature. The yield, intrinsic viscosity, and solubility of the MA/AS copolymers were studied in detail. The copolymers were characterized by 1 H NMR, FT-IR, wide-angle X-ray diffraction,...
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