Polymeric microsieves produced by phase separation micromolding

Miriam Girones nogue, I.J. Akbarsyah, W. Nijdam, W. Nijdam, C.J.M. van Rijn, Henricus V. Jansen, Rob G.H. Lammertink, Matthias Wessling

Research output: Contribution to journalArticleAcademicpeer-review

64 Citations (Scopus)

Abstract

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.
Original languageUndefined
Pages (from-to)411-424
Number of pages14
JournalJournal of membrane science
Volume283
Issue number1-2
DOIs
Publication statusPublished - 20 Oct 2006

Keywords

  • EWI-18871
  • IR-57661
  • METIS-243754
  • Polymeric microsieves Polyethersulfone Polyvinylpirrolidone Phase separation micromolding

Cite this

Girones nogue, M., Akbarsyah, I. J., Nijdam, W., Nijdam, W., van Rijn, C. J. M., Jansen, H. V., ... Wessling, M. (2006). Polymeric microsieves produced by phase separation micromolding. Journal of membrane science, 283(1-2), 411-424. https://doi.org/10.1016/j.memsci.2006.07.016
Girones nogue, Miriam ; Akbarsyah, I.J. ; Nijdam, W. ; Nijdam, W. ; van Rijn, C.J.M. ; Jansen, Henricus V. ; Lammertink, Rob G.H. ; Wessling, Matthias. / Polymeric microsieves produced by phase separation micromolding. In: Journal of membrane science. 2006 ; Vol. 283, No. 1-2. pp. 411-424.
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Girones nogue, M, Akbarsyah, IJ, Nijdam, W, Nijdam, W, van Rijn, CJM, Jansen, HV, Lammertink, RGH & Wessling, M 2006, 'Polymeric microsieves produced by phase separation micromolding' Journal of membrane science, vol. 283, no. 1-2, pp. 411-424. https://doi.org/10.1016/j.memsci.2006.07.016

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 journalArticleAcademicpeer-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

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KW - Polymeric microsieves Polyethersulfone Polyvinylpirrolidone Phase separation micromolding

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DO - 10.1016/j.memsci.2006.07.016

M3 - Article

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SP - 411

EP - 424

JO - Journal of membrane science

JF - Journal of membrane science

SN - 0376-7388

IS - 1-2

ER -

Girones nogue M, Akbarsyah IJ, Nijdam W, Nijdam W, van Rijn CJM, Jansen HV et al. Polymeric microsieves produced by phase separation micromolding. Journal of membrane science. 2006 Oct 20;283(1-2):411-424. https://doi.org/10.1016/j.memsci.2006.07.016