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Rapid Commun."],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    This work introduces the semi\u2010finished product FOIM, a neologism from\n                    <jats:italic>FOI<\/jats:italic>\n                    l and foa\n                    <jats:italic>M<\/jats:italic>\n                    , a phase segregated polyester urethane urea (PEUU) foam, which is synthesized from poly(1,6\u2010hexylene adipate) diol, 4,4\u2019\u2010methylene diphenyl diisocyanate, polyethylene glycol and water as blowing agent. The PEUU is obtained by following a one\u2010shot synthesis and is characterized by a hard\/soft segment ratio of 1.06 and an open pore content of 78%. Differential scanning calorimetry reveals a melting peak at 45\u00a0\u00b0C and a crystallization signal at 14\u00a0\u00b0C, both of which are associated with the phase transitions of the soft segment. The glass transition temperature, which is determined as a local maximum within the tan\u00a0\u03b4 using dynamic mechanical analysis, is 1\u00a0\u00b0C. During programming, the foam is heavily compressed at 60\u00a0\u00b0C. Once unloaded at 23\u00a0\u00b0C, a translucent foil, the FOIM, is obtained. When reheated to 60\u00a0\u00b0C, the foil switches back to the foam due to its pronounced shape memory properties. Intriguingly, the structure remains largely unaffected by the drastic deformation as indicated by buoyancy and heat transmission measurements. The ease of manufacture and functionality makes the technology attractive for applications, in which both low transport volumes and drastic shape changes are desired.\n                  <\/jats:p>","DOI":"10.1002\/marc.202401103","type":"journal-article","created":{"date-parts":[[2025,2,6]],"date-time":"2025-02-06T03:29:58Z","timestamp":1738812598000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["FOIM: Thermal Foaming of Shape Memory Polyurethane Foil"],"prefix":"10.1002","volume":"46","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-3582-8429","authenticated-orcid":false,"given":"Anna\u2010Lisa","family":"Poser","sequence":"first","affiliation":[{"name":"Department of Shape Memory Polymers Fraunhofer Institute for Applied Polymer Research IAP  Geiselbergstra\u00dfe 69 14476 Potsdam Germany"},{"name":"Department of Polymer Chemistry Institute of Chemistry University of Potsdam  Am Neuen Palais 10 14469 Potsdam Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5591-7866","authenticated-orcid":false,"given":"Thorsten","family":"Pretsch","sequence":"additional","affiliation":[{"name":"Department of Shape Memory Polymers Fraunhofer Institute for Applied Polymer Research IAP  Geiselbergstra\u00dfe 69 14476 Potsdam Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,2,6]]},"reference":[{"key":"e_1_2_9_1_1","first-page":"227","volume-title":"Smart Materials","author":"Pretsch T.","year":"2023"},{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3773(20020617)41:12<2034::AID-ANIE2034>3.0.CO;2-M"},{"key":"e_1_2_9_2_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41578-018-0078-8"},{"key":"e_1_2_9_2_3","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202000713"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1080\/14786440608563345"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsomega.9b01167"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matchemphys.2005.09.065"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.3390\/polym5041169"},{"key":"e_1_2_9_7_1","unstructured":"a)Y.Shirai S. 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