Investigation of the formation characteristics of polyaniline and its application in forming free-standing pressure filtration membranes

Izzati Izni Yusoff, Rosiah Rohani, Abdul Wahab Mohammad

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3 Citations (Scopus)

Abstract

PANI particles were synthesised through the chemical polymerisation of an ammonium persulfate (APS) and aniline (ANI) solution with/without lithium chloride (LiCl) at different reaction times (6–24 h) and temperatures (3–24 °C). SEM images, along with GPC results, confirmed that PANI synthesised at different parameters affects the PANI morphology and molecular weight (MW). Meanwhile, TGA and DSC results represent the thermal properties of synthesised PANI and reveal that PANI without LiCl addition has the lowest melting temperature. Based on the results, the best PANI was successfully synthesised at a temperature of 3 °C and at a reaction time of 6 h with the addition of LiCl. A free-standing PANI membrane was obtained through phase inversion upon using PANI in NMP/4MP of 18, 20, and 23 wt%. A rejection study showed that the free-standing PANI membrane with 23 wt% concentration was in nanofiltration (NF), whereas others were in the ultrafiltration (UF) range.

Original languageEnglish
Article number177
JournalJournal of Polymer Research
Volume23
Issue number9
DOIs
Publication statusPublished - 1 Sep 2016

Fingerprint

Lithium Chloride
Polyaniline
Lithium
Membranes
Ammonium persulfate
Nanofiltration
Ultrafiltration
Aniline
Melting point
Thermodynamic properties
Molecular weight
Polymerization
Temperature
Scanning electron microscopy
polyaniline

Keywords

  • Characterization
  • Filtration
  • Membranes
  • Polyaniline
  • Synthesis

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

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abstract = "PANI particles were synthesised through the chemical polymerisation of an ammonium persulfate (APS) and aniline (ANI) solution with/without lithium chloride (LiCl) at different reaction times (6–24 h) and temperatures (3–24 °C). SEM images, along with GPC results, confirmed that PANI synthesised at different parameters affects the PANI morphology and molecular weight (MW). Meanwhile, TGA and DSC results represent the thermal properties of synthesised PANI and reveal that PANI without LiCl addition has the lowest melting temperature. Based on the results, the best PANI was successfully synthesised at a temperature of 3 °C and at a reaction time of 6 h with the addition of LiCl. A free-standing PANI membrane was obtained through phase inversion upon using PANI in NMP/4MP of 18, 20, and 23 wt{\%}. A rejection study showed that the free-standing PANI membrane with 23 wt{\%} concentration was in nanofiltration (NF), whereas others were in the ultrafiltration (UF) range.",
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author = "Yusoff, {Izzati Izni} and Rosiah Rohani and Mohammad, {Abdul Wahab}",
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AU - Rohani, Rosiah

AU - Mohammad, Abdul Wahab

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Y1 - 2016/9/1

N2 - PANI particles were synthesised through the chemical polymerisation of an ammonium persulfate (APS) and aniline (ANI) solution with/without lithium chloride (LiCl) at different reaction times (6–24 h) and temperatures (3–24 °C). SEM images, along with GPC results, confirmed that PANI synthesised at different parameters affects the PANI morphology and molecular weight (MW). Meanwhile, TGA and DSC results represent the thermal properties of synthesised PANI and reveal that PANI without LiCl addition has the lowest melting temperature. Based on the results, the best PANI was successfully synthesised at a temperature of 3 °C and at a reaction time of 6 h with the addition of LiCl. A free-standing PANI membrane was obtained through phase inversion upon using PANI in NMP/4MP of 18, 20, and 23 wt%. A rejection study showed that the free-standing PANI membrane with 23 wt% concentration was in nanofiltration (NF), whereas others were in the ultrafiltration (UF) range.

AB - PANI particles were synthesised through the chemical polymerisation of an ammonium persulfate (APS) and aniline (ANI) solution with/without lithium chloride (LiCl) at different reaction times (6–24 h) and temperatures (3–24 °C). SEM images, along with GPC results, confirmed that PANI synthesised at different parameters affects the PANI morphology and molecular weight (MW). Meanwhile, TGA and DSC results represent the thermal properties of synthesised PANI and reveal that PANI without LiCl addition has the lowest melting temperature. Based on the results, the best PANI was successfully synthesised at a temperature of 3 °C and at a reaction time of 6 h with the addition of LiCl. A free-standing PANI membrane was obtained through phase inversion upon using PANI in NMP/4MP of 18, 20, and 23 wt%. A rejection study showed that the free-standing PANI membrane with 23 wt% concentration was in nanofiltration (NF), whereas others were in the ultrafiltration (UF) range.

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KW - Synthesis

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