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http://hdl.handle.net/1942/10945
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DC Field | Value | Language |
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dc.contributor.author | D'hollander, Stijn | - |
dc.contributor.author | Gommes, Cedric Joseph | - |
dc.contributor.author | MENS, Raoul | - |
dc.contributor.author | ADRIAENSENS, Peter | - |
dc.contributor.author | Goderis, Bart | - |
dc.contributor.author | Du Prez, Filip | - |
dc.date.accessioned | 2010-05-21T14:10:07Z | - |
dc.date.available | NO_RESTRICTION | - |
dc.date.available | 2010-05-21T14:10:07Z | - |
dc.date.issued | 2010 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY, 20(17). p. 3475-3486 | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.uri | http://hdl.handle.net/1942/10945 | - |
dc.description.abstract | A combination of solid-state proton Wide-line Nuclear Magnetic Resonance (NMR) relaxometry and synchrotron Small-angle (SAXS) and Wide-angle (WAXD) X-ray scattering was used to elucidate the microphase morphology of shape memory thermoplastic multi-block polyurethanes based on poly(epsilon-caprolactone), as switching segment and polyurethane based permanent or hard segments (HS). The polyurethanes are produced from the condensation of 1,4-butanediol (BDO) with hexamethylenediisocyanate (HDI). The morphology - induced by the hard-segment crystallization - converts from dispersed randomly placed hard-segment domains into progressively more periodic, but interconnected HS nanophases with increasing HS content. Irrespective of the actual morphology, the SAXS data could be described satisfactorily by using a clipped Gaussian random field (GRF) model. The NMR data demonstrate that the HS domain fraction corresponds to the chemical feed, pointing at a complete phase separation. The material mechanical behavior during repeated deformation cycles can be explained on morphological grounds and involves a spatially heterogeneous plastic deformation of the hard domains. | - |
dc.description.sponsorship | The authors thank the IWT (The Institute for the Promotion of Innovation through Science and Technology in Flanders, Belgium) for a PhD scholarship. CJG is grateful to the F.R.S.-FNRS (Fonds de la Recherche Scientifique, Belgium) for a postdoctoral researcher position. The authors gratefully acknowledge the staff of DUBBLE at the ESRF in France for assisting in the SAXS and WAXS measurements and FWO-Vlaanderen for supporting the DUBBLE project. BELSPO in the frame of network IAP P6/27 initiated by the Belgian State, Prime Minister's office (Program P6/27) is acknowledged for financial support. | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Modeling the morphology and mechanical behavior of shape memory polyurethanes based on solid-state NMR and synchrotron SAXS/WAXD | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 3486 | - |
dc.identifier.issue | 17 | - |
dc.identifier.spage | 3475 | - |
dc.identifier.volume | 20 | - |
local.format.pages | 12 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | [Gommes, Cedric Joseph; Goderis, Bart] Univ Liege, Dept Chem Engn, B-4000 Liege, Belgium. [D'hollander, Stijn; Du Prez, Filip] Univ Ghent, Dept Organ Chem, Polymer Chem Res Grp, B-9000 Ghent, Belgium. [Gommes, Cedric Joseph] Catholic Univ Leuven KU Leuven, Div Mol & Nanomat, Dept Chem, B-3001 Heverlee, Belgium. [Mens, Raoul; Adriaensens, Peter] Hasselt Univ, Div Chem, Inst Mat Res, IMO, B-3590 Diepenbeek, Belgium. bart.goderis@chem.kuleuven.be; filip.duprez@ugent.be | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.bibliographicCitation.oldjcat | A1 | - |
dc.identifier.doi | 10.1039/b923734h | - |
dc.identifier.isi | 000276553300017 | - |
item.fulltext | No Fulltext | - |
item.fullcitation | D'hollander, Stijn; Gommes, Cedric Joseph; MENS, Raoul; ADRIAENSENS, Peter; Goderis, Bart & Du Prez, Filip (2010) Modeling the morphology and mechanical behavior of shape memory polyurethanes based on solid-state NMR and synchrotron SAXS/WAXD. In: JOURNAL OF MATERIALS CHEMISTRY, 20(17). p. 3475-3486. | - |
item.contributor | D'hollander, Stijn | - |
item.contributor | Gommes, Cedric Joseph | - |
item.contributor | MENS, Raoul | - |
item.contributor | ADRIAENSENS, Peter | - |
item.contributor | Goderis, Bart | - |
item.contributor | Du Prez, Filip | - |
item.validation | ecoom 2011 | - |
item.accessRights | Closed Access | - |
crisitem.journal.issn | 0959-9428 | - |
Appears in Collections: | Research publications |
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