Synthesis and characterization of pyrogallol-imprinted poly(methacrylic acid) via precipitation polymerization

Nor Amira Othman, Rusli Daik, Faiz Bukhari Mohd Suah, Faizatul Shimal Mehamod

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

An innovative approach for the selective recovery of pyrogallol by means of molecularly imprinted polymer (MIP) was developed. Pyrogallol has been reported to be found in natural herb plants such as Kacip Fatimah (Labisia pumila) and harmful to human when it is consumed beyond the permissible amount. In this study, pyrogallol-imprinted polymer (PIP) and non-imprinted polymer (NIP) were synthesized via precipitation polymerization on methacrylic acid (MAA) with divinylbenzene (DVB) and azobisisobutyronitrile (AIBN) cross-linker and initiator, respectively. The synthesized polymers were characterized by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and UV-Visible Spectroscopy (UV-Vis). Studies on adsorption isotherm were carried out by using Langmuir and Freundlich isotherm models. Results showed that NIP and PIP follows Freundlich and Langmuir isotherm models, respectively. In order to analyze the sorption kinetics of NIP and PIP, two kinetic models were applied; pseudo-first and pseudo-second order. Samples of NIP and PIP were found to follow pseudo-second order, indicating the rate-limiting step is the surface adsorption.

Original languageEnglish
Pages (from-to)661-674
Number of pages14
JournalInternational Journal of Applied Chemistry
Volume12
Issue number4
Publication statusPublished - 2016

Fingerprint

Pyrogallol
Polymers
Polymerization
divinyl benzene
Isotherms
methacrylic acid
Kinetics
Ultraviolet spectroscopy
Adsorption isotherms
Sorption

Keywords

  • Adsorption isotherms
  • Adsorption kinetic
  • Molecularly imprinted polymer
  • Precipitation polymerization

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Synthesis and characterization of pyrogallol-imprinted poly(methacrylic acid) via precipitation polymerization. / Othman, Nor Amira; Daik, Rusli; Suah, Faiz Bukhari Mohd; Mehamod, Faizatul Shimal.

In: International Journal of Applied Chemistry, Vol. 12, No. 4, 2016, p. 661-674.

Research output: Contribution to journalArticle

Othman, Nor Amira ; Daik, Rusli ; Suah, Faiz Bukhari Mohd ; Mehamod, Faizatul Shimal. / Synthesis and characterization of pyrogallol-imprinted poly(methacrylic acid) via precipitation polymerization. In: International Journal of Applied Chemistry. 2016 ; Vol. 12, No. 4. pp. 661-674.
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AU - Mehamod, Faizatul Shimal

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