The thermoresponsive shape memory characteristics of polyurethane foam
β Scribed by Seung Eun Chung; Chung Hee Park
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 536 KB
- Volume
- 117
- Category
- Article
- ISSN
- 0021-8995
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## Abstract Thermoresponsive shape memory polymers based on polyurethane with soft segment consisting of poly (tetramethylene oxide) (PTMO) and hard segment arising from urethane reaction of tolylene diisocyanate with OH terminal of PTMO and 1,4 butane diol (BD) were synthesized by a twoβ step proc
## Abstract Synthesized shapeβmemory polyurethane (PU) block copolymers were used to prepare electrospun nonwovens via electrospinning. PU solutions were prepared with a mixed solvent of __N,N__βdimethylformamide and tetrahydrofuran. The electrospun PU nonwovens were prepared with hardβsegment conc
Segmented polyurethanes containing soft segments with lower molecular weight exhibit shape-memorizing properties. Structure and properties of shape-memorizing polyurethanes (S-PUS) were studied. S-PUS are characterized by a rather high glass transition temperature: Tg of S-PUS is usually in the rang