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Effects of Isophorone Diisocyanate on the Thermal and Mechanical Properties of Shape-Memory Polyurethane Foams
| Content Provider | Scilit |
|---|---|
| Author | Hasan, Sayyeda M. Raymond, Jeffery E. Wilson, Thomas S. Keller, Brandis K. Maitland, Duncan J. |
| Copyright Year | 2014 |
| Description | Journal: Macromolecular Chemistry and Physics Previously developed shape-memory polymer foams display fast actuation in water due to plasticization of the polymer network. The actuation presents itself as a depression in the glass-transition temperature when moving from dry to aqueous conditions; this effect limits the working time of the foam to 10 min when used in a transcatheter embolic device. Reproducible foams are developed by altering the chemical backbone, which can achieve working times of greater than 20 min. This is accomplished by incorporating isophorone diisocyanate into the foam, resulting in increased hydrophobicity, glass transitions, and actuation time. This delayed actuation, when compared with previous systems, allows for more optimal working time in clinical applications. |
| Related Links | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6136255/pdf |
| Ending Page | 2429 |
| Page Count | 10 |
| Starting Page | 2420 |
| ISSN | 10221352 |
| e-ISSN | 15213935 |
| DOI | 10.1002/macp.201400407 |
| Journal | Macromolecular Chemistry and Physics |
| Issue Number | 24 |
| Volume Number | 215 |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 2014-10-30 |
| Access Restriction | Open |
| Subject Keyword | Journal: Macromolecular Chemistry and Physics Shape-memory Polymers |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Materials Chemistry Physical and Theoretical Chemistry Condensed Matter Physics Polymers and Plastics |