Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33847
Title: The shape memory properties of biodegradable chitosan/poly(l-lactide) composites
Authors: Meng, Q
Hu, J 
Ho, K
Ji, F
Chen, S
Keywords: Chitosan
Poly(l-lactide)
Shape memory property
Issue Date: 2009
Publisher: Springer/Plenum Publishers
Source: Journal of polymers and the environment, 2009, v. 17, no. 3, p. 212-224 How to cite?
Journal: Journal of Polymers and the Environment 
Abstract: The shape memory behavior of PLLA (poly(l-lactide)) and chitosan/PLLA composites was studied. PLLA and chitosan were compounded to fabricate novel materials which may have biodegradability and biocompatibility. Chitosan does not significantly affect the glass and melting transition temperature of the PLLA. Both the pure PLLA and chitosan/PLLA composites showed shape memory effect arising from the viscoelastic properties of PLLA comprised of semi crystalline structures. The shape recovery ratio of the chitosan/PLLA composites decreased significantly with increasing chitosan contents due to the incompatibility between PLLA and chitosan. Phase separation structures of the composites were observed by using atomic force microscopy. To obtain good shape memory effect, the chitosan content should be below 15 wt%.
URI: http://hdl.handle.net/10397/33847
DOI: 10.1007/s10924-009-0141-z
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