## 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
Study of the thermal properties of shape memory polyurethane nanofibrous nonwoven
β Scribed by Haitao Zhuo; Jinlian Hu; Shaojun Chen
- Book ID
- 106396451
- Publisher
- Springer
- Year
- 2011
- Tongue
- English
- Weight
- 511 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0022-2461
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π SIMILAR VOLUMES
The shape memory behavior of a series of polycaprolactone/methane diisocyanate/ butanediol ( PCL /MDI /BDO) segmented polyurethanes of different composition was studied. The molecular weight of PCL diols was in the range of 1600 -7000, and the hard segment content varied from 7.8 to 27% by weight. F
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