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Journal
2013 | 11 | 12 | 2058-2065
Article title

Shape memory polyurethanes based on recycled polyvinyl butyral. I. Synthesis and morphology

Content
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Languages of publication
EN
Abstracts
EN
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.
Publisher
Journal
Year
Volume
11
Issue
12
Pages
2058-2065
Physical description
Dates
published
1 - 12 - 2013
online
26 - 9 - 2013
References
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Document Type
Publication order reference
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-013-0331-3
Identifiers
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