Shape memory polyurethanes based on recycled polyvinyl butyral. I. Synthesis and morphology
- Shape memory polyurethanes (SMPUs) were synthesized by 4,4′-diphenylmethane diisocyanate (MDI), hexane-1,6-diol (HD), polypropylene glycol (PPG), and recycled polyvinyl butyral (PVB). Dynamic mechanical analysis, differential scanning calorimetry and Fourier transformation infrared attenuated total reflection spectroscopy was used to characterize the poly (vinylbutyral-urethanes). Micro-phase domain separation of hard and soft segments and phase inversion were investigated. Increasing the hard segment content, i.e., average hard segment molecular weight, leads to an increase in the degree of micro-phase separation, hard domain order and crystallinity. The crystalline hard segment structures combined with the elastic nature of soft segment matrix provide enough physical and chemical crosslinks to have shape memory effect.
| URN: | urn:nbn:de:kobv:526-opus4-9664 |
|---|---|
| Publisher DOI: | https://doi.org/10.2478/s11532-013-0331-3 |
| Author: | Tsvetomir Tsonev, Michael HerzogORCiD, Sanchi Nenkova |
| ISSN: | 2391-5420 |
| Parent Title (English): | Central European Journal of Chemistry |
| Document Type: | Article |
| Language: | English |
| Year of Publication: | 2013 |
| Volume: | 11 |
| Issue: | 12 |
| First Page: | 2058 |
| Last Page: | 2065 |
| Faculties an central facilities: | Fachbereich Ingenieurwesen / Wirtschaftsingenieurwesen (bis 8/2014) |
| Publishing Institution: | Technische Hochschule Wildau |
| Source: | Tsonev, T., Herzog, M. & Nenkova, S. (2013). Shape memory polyurethanes based on recycled polyvinyl butyral. I. Synthesis and morphology. Open Chemistry, 11(12), pp. 2058-2065. Retrieved 29 May. 2017, from doi:10.2478/s11532-013-0331-3 |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
| Licence (German): | Creative Commons - CC BY-NC-ND 3.0 - Namensnennung - Nicht-kommerziell - Keine Bearbeitung 3.0 Unported |
| Release Date: | 2017/05/29 |



