Abstract
| Original language | Undefined |
|---|---|
| Pages (from-to) | 411-424 |
| Number of pages | 14 |
| Journal | Journal of membrane science |
| Volume | 283 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 20 Oct 2006 |
Keywords
- EWI-18871
- IR-57661
- METIS-243754
- Polymeric microsieves Polyethersulfone Polyvinylpirrolidone Phase separation micromolding
Cite this
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Polymeric microsieves produced by phase separation micromolding. / Girones nogue, Miriam; Akbarsyah, I.J.; Nijdam, W.; Nijdam, W.; van Rijn, C.J.M.; Jansen, Henricus V.; Lammertink, Rob G.H.; Wessling, Matthias.
In: Journal of membrane science, Vol. 283, No. 1-2, 20.10.2006, p. 411-424.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Polymeric microsieves produced by phase separation micromolding
AU - Girones nogue, Miriam
AU - Akbarsyah, I.J.
AU - Nijdam, W.
AU - Nijdam, W.
AU - van Rijn, C.J.M.
AU - Jansen, Henricus V.
AU - Lammertink, Rob G.H.
AU - Wessling, Matthias
PY - 2006/10/20
Y1 - 2006/10/20
N2 - The fabrication of polymeric microsieves with tunable properties (pore size, shape or porosity) is described in this work. Perfectly structured freestanding membranes and accurate replicas of polyethersulfone (PES), copolymers of polyethersulfone and polyethylene oxide (PES–PEO), and blends of PES and hydrophilic additives were produced by phase separation micromolding (PSμM) using a microstructured mold. Phase separation occurred in two stages: vapor-induced phase separation (VIPS), where shrinkage and subsequent perforation of the polymer film took place, and liquid-induced phase separation (LIPS), where lateral shrinkage that facilitated the release of the polymer replica from the mold occurred. The dimensions of the perforations were tuned either by using molds with different pillar diameter or by thermal treatment of the polymer above its glass transition temperature. By the latter method, microsieves with initial pore sizes of about 5 or 2.5 μm were reduced to 1.5 and 0.5 μm, respectively, whereas perforations down to 1.2 μm were achieved by tuning the dimensions of the mold features.
AB - The fabrication of polymeric microsieves with tunable properties (pore size, shape or porosity) is described in this work. Perfectly structured freestanding membranes and accurate replicas of polyethersulfone (PES), copolymers of polyethersulfone and polyethylene oxide (PES–PEO), and blends of PES and hydrophilic additives were produced by phase separation micromolding (PSμM) using a microstructured mold. Phase separation occurred in two stages: vapor-induced phase separation (VIPS), where shrinkage and subsequent perforation of the polymer film took place, and liquid-induced phase separation (LIPS), where lateral shrinkage that facilitated the release of the polymer replica from the mold occurred. The dimensions of the perforations were tuned either by using molds with different pillar diameter or by thermal treatment of the polymer above its glass transition temperature. By the latter method, microsieves with initial pore sizes of about 5 or 2.5 μm were reduced to 1.5 and 0.5 μm, respectively, whereas perforations down to 1.2 μm were achieved by tuning the dimensions of the mold features.
KW - EWI-18871
KW - IR-57661
KW - METIS-243754
KW - Polymeric microsieves Polyethersulfone Polyvinylpirrolidone Phase separation micromolding
U2 - 10.1016/j.memsci.2006.07.016
DO - 10.1016/j.memsci.2006.07.016
M3 - Article
VL - 283
SP - 411
EP - 424
JO - Journal of membrane science
JF - Journal of membrane science
SN - 0376-7388
IS - 1-2
ER -