Thermo-responsive copolymers with ionic group as novel draw solutes for forward osmosis processes

Jin joo Kim, Jae Seung Chung, Hyo Kang, Yun Ah Yu, Won Jae Choi, Hee Joong Kim, Jong Chan Lee

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Thermo-responsive copolymers containing ionic groups (P(MTxEOy), where x and y are the feed molar percent of [2-(methacryloyloxy)ethyl]trimethylammonium chloride (MTAC) and 2-(2-methoxyethoxy)ethyl methacrylate (MEO), respectively) were synthesized via free radical polymerization using MTAC and MEO as monomers, in order to use the copolymers as a draw solute in a forward osmosis (FO) system. The osmotic pressure and lower critical solution temperature (LCST) could be controlled by changing the composition of the copolymers. For example, P(MT25EO75) shows a relatively high osmotic pressure of 0.909 Osmol/kg at 0.2 g/mL, and P(MT5EO95) shows a LCST close to room temperature at 32 °C. When P(MT20EO80) was used as a draw solute in the FO system, a reasonable water permeation flux value of 5.45 Lm−2h−1 at 0.1 g/mL was observed and the draw solute (P(MT20EO80)) could be recovered with a very large draw solute recovery value of 99.80% from the draw solutions by heating to 70 °C, above the LCST, followed by a microfiltration process. Therefore, it is expected that such copolymer system could be a prospective candidate as a draw solute in the FO system.

Original languageEnglish (US)
Pages (from-to)963-970
Number of pages8
JournalMacromolecular Research
Volume22
Issue number9
DOIs
StatePublished - Sep 20 2014

Fingerprint

Osmosis
Copolymers
Temperature
Microfiltration
Methacrylates
Free radical polymerization
Permeation
Monomers
Fluxes
Heating
Recovery
Water
Chemical analysis
2-(trimethylammonio)ethyl methacrylate

Keywords

  • LCST polymers
  • draw solution
  • forward osmosis
  • ionic polymers

Cite this

Thermo-responsive copolymers with ionic group as novel draw solutes for forward osmosis processes. / Kim, Jin joo; Chung, Jae Seung; Kang, Hyo; Yu, Yun Ah; Choi, Won Jae; Kim, Hee Joong; Lee, Jong Chan.

In: Macromolecular Research, Vol. 22, No. 9, 20.09.2014, p. 963-970.

Research output: Contribution to journalArticle

Kim, Jin joo ; Chung, Jae Seung ; Kang, Hyo ; Yu, Yun Ah ; Choi, Won Jae ; Kim, Hee Joong ; Lee, Jong Chan. / Thermo-responsive copolymers with ionic group as novel draw solutes for forward osmosis processes. In: Macromolecular Research. 2014 ; Vol. 22, No. 9. pp. 963-970.
@article{997e2b645ea9409183a8f9e88e16bd09,
title = "Thermo-responsive copolymers with ionic group as novel draw solutes for forward osmosis processes",
abstract = "Thermo-responsive copolymers containing ionic groups (P(MTxEOy), where x and y are the feed molar percent of [2-(methacryloyloxy)ethyl]trimethylammonium chloride (MTAC) and 2-(2-methoxyethoxy)ethyl methacrylate (MEO), respectively) were synthesized via free radical polymerization using MTAC and MEO as monomers, in order to use the copolymers as a draw solute in a forward osmosis (FO) system. The osmotic pressure and lower critical solution temperature (LCST) could be controlled by changing the composition of the copolymers. For example, P(MT25EO75) shows a relatively high osmotic pressure of 0.909 Osmol/kg at 0.2 g/mL, and P(MT5EO95) shows a LCST close to room temperature at 32 °C. When P(MT20EO80) was used as a draw solute in the FO system, a reasonable water permeation flux value of 5.45 Lm−2h−1 at 0.1 g/mL was observed and the draw solute (P(MT20EO80)) could be recovered with a very large draw solute recovery value of 99.80{\%} from the draw solutions by heating to 70 °C, above the LCST, followed by a microfiltration process. Therefore, it is expected that such copolymer system could be a prospective candidate as a draw solute in the FO system.",
keywords = "LCST polymers, draw solution, forward osmosis, ionic polymers",
author = "Kim, {Jin joo} and Chung, {Jae Seung} and Hyo Kang and Yu, {Yun Ah} and Choi, {Won Jae} and Kim, {Hee Joong} and Lee, {Jong Chan}",
year = "2014",
month = "9",
day = "20",
doi = "10.1007/s13233-014-2142-6",
language = "English (US)",
volume = "22",
pages = "963--970",
journal = "Macromolecular Research",
issn = "1598-5032",
publisher = "Polymer Society of Korea",
number = "9",

}

TY - JOUR

T1 - Thermo-responsive copolymers with ionic group as novel draw solutes for forward osmosis processes

AU - Kim, Jin joo

AU - Chung, Jae Seung

AU - Kang, Hyo

AU - Yu, Yun Ah

AU - Choi, Won Jae

AU - Kim, Hee Joong

AU - Lee, Jong Chan

PY - 2014/9/20

Y1 - 2014/9/20

N2 - Thermo-responsive copolymers containing ionic groups (P(MTxEOy), where x and y are the feed molar percent of [2-(methacryloyloxy)ethyl]trimethylammonium chloride (MTAC) and 2-(2-methoxyethoxy)ethyl methacrylate (MEO), respectively) were synthesized via free radical polymerization using MTAC and MEO as monomers, in order to use the copolymers as a draw solute in a forward osmosis (FO) system. The osmotic pressure and lower critical solution temperature (LCST) could be controlled by changing the composition of the copolymers. For example, P(MT25EO75) shows a relatively high osmotic pressure of 0.909 Osmol/kg at 0.2 g/mL, and P(MT5EO95) shows a LCST close to room temperature at 32 °C. When P(MT20EO80) was used as a draw solute in the FO system, a reasonable water permeation flux value of 5.45 Lm−2h−1 at 0.1 g/mL was observed and the draw solute (P(MT20EO80)) could be recovered with a very large draw solute recovery value of 99.80% from the draw solutions by heating to 70 °C, above the LCST, followed by a microfiltration process. Therefore, it is expected that such copolymer system could be a prospective candidate as a draw solute in the FO system.

AB - Thermo-responsive copolymers containing ionic groups (P(MTxEOy), where x and y are the feed molar percent of [2-(methacryloyloxy)ethyl]trimethylammonium chloride (MTAC) and 2-(2-methoxyethoxy)ethyl methacrylate (MEO), respectively) were synthesized via free radical polymerization using MTAC and MEO as monomers, in order to use the copolymers as a draw solute in a forward osmosis (FO) system. The osmotic pressure and lower critical solution temperature (LCST) could be controlled by changing the composition of the copolymers. For example, P(MT25EO75) shows a relatively high osmotic pressure of 0.909 Osmol/kg at 0.2 g/mL, and P(MT5EO95) shows a LCST close to room temperature at 32 °C. When P(MT20EO80) was used as a draw solute in the FO system, a reasonable water permeation flux value of 5.45 Lm−2h−1 at 0.1 g/mL was observed and the draw solute (P(MT20EO80)) could be recovered with a very large draw solute recovery value of 99.80% from the draw solutions by heating to 70 °C, above the LCST, followed by a microfiltration process. Therefore, it is expected that such copolymer system could be a prospective candidate as a draw solute in the FO system.

KW - LCST polymers

KW - draw solution

KW - forward osmosis

KW - ionic polymers

UR - http://www.scopus.com/inward/record.url?scp=84918775455&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84918775455&partnerID=8YFLogxK

U2 - 10.1007/s13233-014-2142-6

DO - 10.1007/s13233-014-2142-6

M3 - Article

AN - SCOPUS:84918775455

VL - 22

SP - 963

EP - 970

JO - Macromolecular Research

JF - Macromolecular Research

SN - 1598-5032

IS - 9

ER -