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The Synthesis of Poly(vinylphosphonic Acid-Co-Methacrylic Acid) Microbeads by Suspension Polymerization and the Characterization of Their Indium Adsorption Properties

The Synthesis of Poly(vinylphosphonic Acid-Co-Methacrylic Acid) Microbeads by Suspension Polymerization and the Characterization of Their Indium Adsorption Properties

Noh-Seok Kwak, Youngmin Baek, Taek Sung Hwang

J Hazard Mater. 2012 Feb 15;203-204:213-20.

PMID: 22209590

Abstract:

Poly(vinylphosphonic acid-co-methacrylic acid) microbeads were synthesized by suspension polymerization, and their indium adsorption properties were investigated. The obtained microbeads were characterized by Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM). The microbeads were wrinkled spheres, irrespective of the components, and their sizes ranged from 100 to 200 μm. The microbeads were thermally stable up to 260°C. As the vinylphosphonic acid (VPA) content was increased, the synthetic yields and ion-exchange capacities decreased and the water uptakes increased. The optimum synthetic yield, ion-exchange capacity and water uptake were obtained at a 0.5 mol ratio of VPA. In addition, the maximum adsorption predicted by the Langmuir adsorption isotherm model was greatest at a 0.5 mol ratio of VPA.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP27754990	Poly(vinylphosphonic acid)		27754-99-0	Price

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