Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28120
Title: Achieving shape memory : reversible behaviors of cellulose-PU blends in wet-dry cycles
Authors: Luo, H
Hu, J 
Zhu, Y
Zhang, S
Fan, Y
Ye, G
Keywords: blends
cellulose
dry
polyurethane
reversible
shape memory
wet
Issue Date: 2012
Publisher: John Wiley & Sons
Source: Journal of applied polymer science, 2012, v. 125, no. 1, p. 657-665 How to cite?
Journal: Journal of applied polymer science 
Abstract: Shape memory effect (SME) was achieved for cellulose-polyurethane (PU) blends of different compositions in wet-dry cycles, featuring that the amorphous cellulose and the PU content served as the fixing phase and the recovery phase, respectively. The dependence on the compositions of the fixity ratio and the recovery ratio was quantitatively measured by tensile tests. The morphological and thermal properties of the blends were further investigated by scanning electron microscopy and thermogravimetric analysis. The storage modulus of the blends varied reversibly in the wet-dry cycles, as determined by dynamic mechanical analysis. Furthermore, the microstructure of the blends reversibly changed correspondingly, as determined by wide-angle X-ray scattering diffraction and Fourier transform infrared. It was predicted that the reversible transition in different amorphous cellulose structures triggered by water led to the reversible variation in modulus as well as the wet-dry SME of the blends.
URI: http://hdl.handle.net/10397/28120
ISSN: 0021-8995
EISSN: 1097-4628
DOI: 10.1002/app.36292
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

14
Last Week
0
Last month
0
Citations as of Aug 15, 2017

WEB OF SCIENCETM
Citations

10
Last Week
0
Last month
0
Citations as of Aug 12, 2017

Page view(s)

40
Last Week
2
Last month
Checked on Aug 13, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.