Nanocomposite membranes consisting of poly(vinyl chloride) graft copolymer and surface-modified silica nanoparticles

Sung Hoon Ahn, Jung Tae Park, Jong Hak Kim, Youngdeok Ko, Seong Uk Hong

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A graft copolymer of poly(vinyl chloride)-graft-poly(oxyethylene methacrylate) (PVC-g-POEM) was synthesized via atom transfer radical polymerization (ATRP), and fumed silica (SiO2) nanoparticles were modified by grafting POEM via a three-step synthetic approach. The resultant graft copolymer and modified SiO2 nanoparticles were solution blended to prepare PVC-g-POEM/SiO2-POEM nanocomposite membranes. Uniform distribution of SiO2-POEM nanoparticles in the membranes and microphase-separated morphology were confirmed by transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). X-ray diffraction (XRD) analysis revealed increased randomness in the amorphous phase of PVC-g-POEM and continuous decrease in the interchain d-spacing with increased SiO2-POEM content, indicating a more closely packed nanocomposite membrane structure. The mechanical properties of PVC-g-POEM/SiO2-POEM membranes were superior to those of PVC-g-POEM, resulting from strong interfacial interactions in the membranes due to the segregation and entanglement of the POEM chains. In addition, the permeation performances of the PVC-g-POEM/SiO2-POEM nanocomposite membranes were somewhat better than those of PVC-g-POEM, which showed excellent CO2/N2 and CO2/H2 separation capabilities. For example, the CO2 permeability and CO2/N2 selectivity of PVC-g-POEM/SiO2-POEM (2%) at 35 °C were 200 Barrer and 43, respectively. Thus, we successfully prepared membranes that deliver high permeation properties, as well as good mechanical properties. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1195-1201
Number of pages7
JournalMacromolecular Research
Volume19
Issue number11
DOIs
Publication statusPublished - 2011 Nov 1

Fingerprint

Vinyl Chloride
Methacrylates
Graft copolymers
Grafts
Silicon Dioxide
Nanocomposites
Silica
Nanoparticles
Membranes
Permeation
Mechanical properties
Membrane structures
Atom transfer radical polymerization
X ray diffraction analysis
Differential scanning calorimetry
Transmission electron microscopy

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Chemical Engineering(all)

Cite this

Ahn, Sung Hoon ; Park, Jung Tae ; Kim, Jong Hak ; Ko, Youngdeok ; Hong, Seong Uk. / Nanocomposite membranes consisting of poly(vinyl chloride) graft copolymer and surface-modified silica nanoparticles. In: Macromolecular Research. 2011 ; Vol. 19, No. 11. pp. 1195-1201.
@article{7db4df782b494bf6ba42d8446b1e8caa,
title = "Nanocomposite membranes consisting of poly(vinyl chloride) graft copolymer and surface-modified silica nanoparticles",
abstract = "A graft copolymer of poly(vinyl chloride)-graft-poly(oxyethylene methacrylate) (PVC-g-POEM) was synthesized via atom transfer radical polymerization (ATRP), and fumed silica (SiO2) nanoparticles were modified by grafting POEM via a three-step synthetic approach. The resultant graft copolymer and modified SiO2 nanoparticles were solution blended to prepare PVC-g-POEM/SiO2-POEM nanocomposite membranes. Uniform distribution of SiO2-POEM nanoparticles in the membranes and microphase-separated morphology were confirmed by transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). X-ray diffraction (XRD) analysis revealed increased randomness in the amorphous phase of PVC-g-POEM and continuous decrease in the interchain d-spacing with increased SiO2-POEM content, indicating a more closely packed nanocomposite membrane structure. The mechanical properties of PVC-g-POEM/SiO2-POEM membranes were superior to those of PVC-g-POEM, resulting from strong interfacial interactions in the membranes due to the segregation and entanglement of the POEM chains. In addition, the permeation performances of the PVC-g-POEM/SiO2-POEM nanocomposite membranes were somewhat better than those of PVC-g-POEM, which showed excellent CO2/N2 and CO2/H2 separation capabilities. For example, the CO2 permeability and CO2/N2 selectivity of PVC-g-POEM/SiO2-POEM (2{\%}) at 35 °C were 200 Barrer and 43, respectively. Thus, we successfully prepared membranes that deliver high permeation properties, as well as good mechanical properties. [Figure not available: see fulltext.]",
author = "Ahn, {Sung Hoon} and Park, {Jung Tae} and Kim, {Jong Hak} and Youngdeok Ko and Hong, {Seong Uk}",
year = "2011",
month = "11",
day = "1",
doi = "10.1007/s13233-011-1116-1",
language = "English",
volume = "19",
pages = "1195--1201",
journal = "Macromolecular Research",
issn = "1598-5032",
publisher = "Polymer Society of Korea",
number = "11",

}

Nanocomposite membranes consisting of poly(vinyl chloride) graft copolymer and surface-modified silica nanoparticles. / Ahn, Sung Hoon; Park, Jung Tae; Kim, Jong Hak; Ko, Youngdeok; Hong, Seong Uk.

In: Macromolecular Research, Vol. 19, No. 11, 01.11.2011, p. 1195-1201.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Nanocomposite membranes consisting of poly(vinyl chloride) graft copolymer and surface-modified silica nanoparticles

AU - Ahn, Sung Hoon

AU - Park, Jung Tae

AU - Kim, Jong Hak

AU - Ko, Youngdeok

AU - Hong, Seong Uk

PY - 2011/11/1

Y1 - 2011/11/1

N2 - A graft copolymer of poly(vinyl chloride)-graft-poly(oxyethylene methacrylate) (PVC-g-POEM) was synthesized via atom transfer radical polymerization (ATRP), and fumed silica (SiO2) nanoparticles were modified by grafting POEM via a three-step synthetic approach. The resultant graft copolymer and modified SiO2 nanoparticles were solution blended to prepare PVC-g-POEM/SiO2-POEM nanocomposite membranes. Uniform distribution of SiO2-POEM nanoparticles in the membranes and microphase-separated morphology were confirmed by transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). X-ray diffraction (XRD) analysis revealed increased randomness in the amorphous phase of PVC-g-POEM and continuous decrease in the interchain d-spacing with increased SiO2-POEM content, indicating a more closely packed nanocomposite membrane structure. The mechanical properties of PVC-g-POEM/SiO2-POEM membranes were superior to those of PVC-g-POEM, resulting from strong interfacial interactions in the membranes due to the segregation and entanglement of the POEM chains. In addition, the permeation performances of the PVC-g-POEM/SiO2-POEM nanocomposite membranes were somewhat better than those of PVC-g-POEM, which showed excellent CO2/N2 and CO2/H2 separation capabilities. For example, the CO2 permeability and CO2/N2 selectivity of PVC-g-POEM/SiO2-POEM (2%) at 35 °C were 200 Barrer and 43, respectively. Thus, we successfully prepared membranes that deliver high permeation properties, as well as good mechanical properties. [Figure not available: see fulltext.]

AB - A graft copolymer of poly(vinyl chloride)-graft-poly(oxyethylene methacrylate) (PVC-g-POEM) was synthesized via atom transfer radical polymerization (ATRP), and fumed silica (SiO2) nanoparticles were modified by grafting POEM via a three-step synthetic approach. The resultant graft copolymer and modified SiO2 nanoparticles were solution blended to prepare PVC-g-POEM/SiO2-POEM nanocomposite membranes. Uniform distribution of SiO2-POEM nanoparticles in the membranes and microphase-separated morphology were confirmed by transmission electron microscopy (TEM) and differential scanning calorimetry (DSC). X-ray diffraction (XRD) analysis revealed increased randomness in the amorphous phase of PVC-g-POEM and continuous decrease in the interchain d-spacing with increased SiO2-POEM content, indicating a more closely packed nanocomposite membrane structure. The mechanical properties of PVC-g-POEM/SiO2-POEM membranes were superior to those of PVC-g-POEM, resulting from strong interfacial interactions in the membranes due to the segregation and entanglement of the POEM chains. In addition, the permeation performances of the PVC-g-POEM/SiO2-POEM nanocomposite membranes were somewhat better than those of PVC-g-POEM, which showed excellent CO2/N2 and CO2/H2 separation capabilities. For example, the CO2 permeability and CO2/N2 selectivity of PVC-g-POEM/SiO2-POEM (2%) at 35 °C were 200 Barrer and 43, respectively. Thus, we successfully prepared membranes that deliver high permeation properties, as well as good mechanical properties. [Figure not available: see fulltext.]

UR - http://www.scopus.com/inward/record.url?scp=80755159231&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80755159231&partnerID=8YFLogxK

U2 - 10.1007/s13233-011-1116-1

DO - 10.1007/s13233-011-1116-1

M3 - Article

VL - 19

SP - 1195

EP - 1201

JO - Macromolecular Research

JF - Macromolecular Research

SN - 1598-5032

IS - 11

ER -