Amphiphilic graft copolymers comprising poly(vinyl chloride) (PVC) main chains and poly(oxyethylene methacrylate) (POEM) side chains, i.e. PVC-g-POEM, were synthesized via atom transfer radical polymerization (ATRP) using direct initiation of the secondary chlorines of PVC. Successful synthesis of the graft copolymer was confirmed using 1HNMRand FT-IR spectroscopy.TEMand DSC analysis revealed the welldefined microphase-separated structure of the graft copolymer into hydrophobic PVC and hydrophilic POEM domains. All the membranes exhibited amorphous structures and the intersegmental d-spacing were increased with the grafting degree, as characterized by XRD analysis. Permeation experimental results using a CO2/N2 (50/50) mixture indicated that as an amount of POEM in a copolymer increased, CO2 permeability increased dramatically without the sacrifice of selectivity. For example, the CO2 permeability [1×10-8 cm3(STP) cm/cm2 scmHg (100 Barrer)] of PVC-g-POEM with 70 wt% of POEM at 25 °C was about 70 times higher than that of the pure PVC membrane [1.45×10-10cm3(STP) cm/cm2 scmHg (1.45 Barrer)].
|Title of host publication||20th Annual Meeting of the North American Membrane Society and 11th International Conference on Inorganic Membranes 2010, NAMS/ICIM 2010|
|Number of pages||6|
|Publication status||Published - 2010|
|Event||20th Annual Meeting of the North American Membrane Society 2010, NAMS 2010 and 11th International Conference on Inorganic Membranes 2010, ICIM 2010 - Washington, DC, United States|
Duration: 2010 Jul 17 → 2010 Jul 22
|Name||20th Annual Meeting of the North American Membrane Society and 11th International Conference on Inorganic Membranes 2010, NAMS/ICIM 2010|
|Other||20th Annual Meeting of the North American Membrane Society 2010, NAMS 2010 and 11th International Conference on Inorganic Membranes 2010, ICIM 2010|
|Period||10/7/17 → 10/7/22|
Bibliographical noteFunding Information:
This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) ( R11-2007-050-04003-0 ) and by the Ministry of Knowledge Economy (MKE) and Korea Institute for Advancement in Technology (KIAT) through the Workforce Development Program in Strategic Technology.
All Science Journal Classification (ASJC) codes
- Filtration and Separation