Activated carbon effects on morphology and permeability of poly(l-lactic acid)-poly(ethylene glycol) membranes

Afifah Muhamad Sidik, Farah Hannan Anuar

Research output: Contribution to journalArticle

Abstract

Poly(lactic acid) (PLA) is a bio-based polymer from plant resources and has been demonstrated to form porous, hydrophilic and strong structure when copolymerized with poly(ethylene glycol) (PEG). Thin film based on PLLA-PEG polyurethane copolymer has an interesting potential application as a disposable biodegradable water filtration membrane. This study aims to develop PLA-PEG polyurethane copolymer thin film membrane with a series of activated carbon (AC) contents of 2, 4, 6, 8, and 10 wt.%. Membrane matrix was first synthesized via chain extension reaction of dihydroxyl terminated PLLA and PEG prepolymers with hexamethylene diisocyanate, before the addition of AC, followed by membrane fabrication. Combining PLLA-PEG with AC resulted in changes in the morphology, thermal properties, and permeability of the membrane. Formation of urethane groups was observed in the ATR-FTIR spectrum based on the appearance of a new peak at 1619 cm−1 corresponding to -NH-group. FESEM analysis showed that membrane with 6% AC had more uniform pores compared to membranes with 2% and 10% AC. Permeation water flux test demonstrated that exerted pressure gave insignificant effect towards the resistance of membrane water fluxes, with the increment of AC resulted in increasing resistance. It was also found that the membrane with 2% AC had the highest total mean in permeation water flux, followed by 6% and 10% AC.

Original languageEnglish
Pages (from-to)71-78
Number of pages8
JournalMalaysian Journal of Chemistry
Volume21
Issue number2
Publication statusPublished - 1 Jan 2019

Fingerprint

Lactic acid
Activated carbon
Polyethylene glycols
Membranes
Polyurethanes
Fluxes
Permeation
Water
Copolymers
Water filtration
poly(lactic acid-ethylene glycol)
Thin films
Urethane
Polymers
Thermodynamic properties
Fabrication

Keywords

  • Activated carbon
  • Membrane
  • Poly(ethylene glycol)
  • Poly(l-lactic acid)
  • Polyurethane

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

Cite this

Activated carbon effects on morphology and permeability of poly(l-lactic acid)-poly(ethylene glycol) membranes. / Sidik, Afifah Muhamad; Anuar, Farah Hannan.

In: Malaysian Journal of Chemistry, Vol. 21, No. 2, 01.01.2019, p. 71-78.

Research output: Contribution to journalArticle

@article{8c691342cad84b559e9218fb4f10352f,
title = "Activated carbon effects on morphology and permeability of poly(l-lactic acid)-poly(ethylene glycol) membranes",
abstract = "Poly(lactic acid) (PLA) is a bio-based polymer from plant resources and has been demonstrated to form porous, hydrophilic and strong structure when copolymerized with poly(ethylene glycol) (PEG). Thin film based on PLLA-PEG polyurethane copolymer has an interesting potential application as a disposable biodegradable water filtration membrane. This study aims to develop PLA-PEG polyurethane copolymer thin film membrane with a series of activated carbon (AC) contents of 2, 4, 6, 8, and 10 wt.{\%}. Membrane matrix was first synthesized via chain extension reaction of dihydroxyl terminated PLLA and PEG prepolymers with hexamethylene diisocyanate, before the addition of AC, followed by membrane fabrication. Combining PLLA-PEG with AC resulted in changes in the morphology, thermal properties, and permeability of the membrane. Formation of urethane groups was observed in the ATR-FTIR spectrum based on the appearance of a new peak at 1619 cm−1 corresponding to -NH-group. FESEM analysis showed that membrane with 6{\%} AC had more uniform pores compared to membranes with 2{\%} and 10{\%} AC. Permeation water flux test demonstrated that exerted pressure gave insignificant effect towards the resistance of membrane water fluxes, with the increment of AC resulted in increasing resistance. It was also found that the membrane with 2{\%} AC had the highest total mean in permeation water flux, followed by 6{\%} and 10{\%} AC.",
keywords = "Activated carbon, Membrane, Poly(ethylene glycol), Poly(l-lactic acid), Polyurethane",
author = "Sidik, {Afifah Muhamad} and Anuar, {Farah Hannan}",
year = "2019",
month = "1",
day = "1",
language = "English",
volume = "21",
pages = "71--78",
journal = "Malaysian Journal of Chemistry",
issn = "1511-2292",
publisher = "Malaysian Institute of Chemistry",
number = "2",

}

TY - JOUR

T1 - Activated carbon effects on morphology and permeability of poly(l-lactic acid)-poly(ethylene glycol) membranes

AU - Sidik, Afifah Muhamad

AU - Anuar, Farah Hannan

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Poly(lactic acid) (PLA) is a bio-based polymer from plant resources and has been demonstrated to form porous, hydrophilic and strong structure when copolymerized with poly(ethylene glycol) (PEG). Thin film based on PLLA-PEG polyurethane copolymer has an interesting potential application as a disposable biodegradable water filtration membrane. This study aims to develop PLA-PEG polyurethane copolymer thin film membrane with a series of activated carbon (AC) contents of 2, 4, 6, 8, and 10 wt.%. Membrane matrix was first synthesized via chain extension reaction of dihydroxyl terminated PLLA and PEG prepolymers with hexamethylene diisocyanate, before the addition of AC, followed by membrane fabrication. Combining PLLA-PEG with AC resulted in changes in the morphology, thermal properties, and permeability of the membrane. Formation of urethane groups was observed in the ATR-FTIR spectrum based on the appearance of a new peak at 1619 cm−1 corresponding to -NH-group. FESEM analysis showed that membrane with 6% AC had more uniform pores compared to membranes with 2% and 10% AC. Permeation water flux test demonstrated that exerted pressure gave insignificant effect towards the resistance of membrane water fluxes, with the increment of AC resulted in increasing resistance. It was also found that the membrane with 2% AC had the highest total mean in permeation water flux, followed by 6% and 10% AC.

AB - Poly(lactic acid) (PLA) is a bio-based polymer from plant resources and has been demonstrated to form porous, hydrophilic and strong structure when copolymerized with poly(ethylene glycol) (PEG). Thin film based on PLLA-PEG polyurethane copolymer has an interesting potential application as a disposable biodegradable water filtration membrane. This study aims to develop PLA-PEG polyurethane copolymer thin film membrane with a series of activated carbon (AC) contents of 2, 4, 6, 8, and 10 wt.%. Membrane matrix was first synthesized via chain extension reaction of dihydroxyl terminated PLLA and PEG prepolymers with hexamethylene diisocyanate, before the addition of AC, followed by membrane fabrication. Combining PLLA-PEG with AC resulted in changes in the morphology, thermal properties, and permeability of the membrane. Formation of urethane groups was observed in the ATR-FTIR spectrum based on the appearance of a new peak at 1619 cm−1 corresponding to -NH-group. FESEM analysis showed that membrane with 6% AC had more uniform pores compared to membranes with 2% and 10% AC. Permeation water flux test demonstrated that exerted pressure gave insignificant effect towards the resistance of membrane water fluxes, with the increment of AC resulted in increasing resistance. It was also found that the membrane with 2% AC had the highest total mean in permeation water flux, followed by 6% and 10% AC.

KW - Activated carbon

KW - Membrane

KW - Poly(ethylene glycol)

KW - Poly(l-lactic acid)

KW - Polyurethane

UR - http://www.scopus.com/inward/record.url?scp=85071472513&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85071472513&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85071472513

VL - 21

SP - 71

EP - 78

JO - Malaysian Journal of Chemistry

JF - Malaysian Journal of Chemistry

SN - 1511-2292

IS - 2

ER -