The effect of chitosan form on the shape memory properties of polyurethane based composites
Authors:
- Monika Bil
Abstract
The continuous progress in the medicine and biotechnology demands development of novel biomaterials with multiple functions. This multifunctionality may be accomplished through combining synthetic polymers with shape memory properties and natural polymers. Shape memory composites consisting of poly(caprolactone-urethane) and chitosan (PU-2/3 PCL CH) were synthesized and evaluated in terms of structure–function correlation. Chitosan was incorporated in a form of microspheres (CH-Mic) or as the macromolecule unit (CH-m) of PCL-based polyurethane matrix (PU-2/3 PCL). The effect of chitosan on shape memory properties and transition temperature was evaluated. The PU-2/3 PCL CH-m composite demonstrated a lower transition temperature (Ttrans) of the shape recovery in comparison to neat PU-2/3 PCL matrix and PU-2/3 PCL CH-Mic composites. The composites with CH-m exhibited shape recovery immediately after reaching Ttrans whereas neat polymers and composites consisting of CH-Mic required five minutes pre-heating time before initialization of the shape recovery process.
- Record ID
- WUTcb1925edc8094ef38ad813e56b7e6675
- Author
- Journal series
- Materials Letters, ISSN 0167-577X, e-ISSN 1873-4979
- Issue year
- 2021
- Pages
- 129007-129011
- Publication size in sheets
- 6450.35
- ASJC Classification
- ; ; ;
- Abstract in original language
- The continuous progress in the medicine and biotechnology demands development of novel biomaterials with multiple functions. This multifunctionality may be accomplished through combining synthetic polymers with shape memory properties and natural polymers. Shape memory composites consisting of poly(caprolactone-urethane) and chitosan (PU-2/3 PCL CH) were synthesized and evaluated in terms of structure–function correlation. Chitosan was incorporated in a form of microspheres (CH-Mic) or as the macromolecule unit (CH-m) of PCL-based polyurethane matrix (PU-2/3 PCL). The effect of chitosan on shape memory properties and transition temperature was evaluated. The PU-2/3 PCL CH-m composite demonstrated a lower transition temperature (Ttrans) of the shape recovery in comparison to neat PU-2/3 PCL matrix and PU-2/3 PCL CH-Mic composites. The composites with CH-m exhibited shape recovery immediately after reaching Ttrans whereas neat polymers and composites consisting of CH-Mic required five minutes pre-heating time before initialization of the shape recovery process.
- DOI
- DOI:10.1016/j.matlet.2020.129007 Opening in a new tab
- URL
- https://doi.org/10.1016/j.matlet.2020.129007 Opening in a new tab
- Language
- (en) English
- Score (nominal)
- 70
- Score source
- journalList
- Score
- = 70.0, 18-06-2021, ArticleFromJournal
- Publication indicators
- = 0; = 0; : 2017 = 0.887; : 2019 = 3.204 (2) - 2019=2.785 (5)
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- Uniform Resource Identifier
- https://repo.pw.edu.pl/info/article/WUTcb1925edc8094ef38ad813e56b7e6675/
- URN
urn:pw-repo:WUTcb1925edc8094ef38ad813e56b7e6675
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or PerishOpening in a new tab system.