TY - JOUR
T1 - Soybean oil-based shape-memory polyurethanes
T2 - Synthesis and characterization
AU - Miao, Shida
AU - Wang, Ping
AU - Su, Zhiguo
AU - Liu, Youyan
AU - Zhang, Songping
PY - 2012/12
Y1 - 2012/12
N2 - Shape-memory polymers (SMPs) have wide range of applications due to their ability to sense environmental stimuli and reshape from a temporary shape to a permanent shape. Plant oil-based polymeric materials are highly concerned in recent years in consideration of petroleum depletion and environmental pollution. However, plant oil-based polymers are rarely investigated regarding their shape-memory characteristics though bio-based SMPs are highly desired nowadays. In this study, a series of soybean oil-based shape-memory polyurethanes (SSMPUs) are prepared through a mild chemo-enzymatic synthetic route, and their properties are fully characterized with tensile testing, DSC, dynamic mechanical analysis (DMA), and shape-memory testing. Results show that SSMPUs are soft rubbers with tensile strength in the range of 1.9-2.2MPa and glass transition temperature in the range of 2-5°C, and possess good shape recoveries at RT when stretching ratio is 10, 20, and 30%, respectively. This work would promote the development of high-value-added plant oil-based shape-memory polyurethanes. Practical applications: Using annual renewable plant oil as feedstock, the synthesized SSMPUs show good shape recovery properties, which will make them applicable as potential alternatives to petroleum-based shape-memory materials. The simple and mild preparation process also contributes to the further exploration of plant oil to value-added functional materials.
AB - Shape-memory polymers (SMPs) have wide range of applications due to their ability to sense environmental stimuli and reshape from a temporary shape to a permanent shape. Plant oil-based polymeric materials are highly concerned in recent years in consideration of petroleum depletion and environmental pollution. However, plant oil-based polymers are rarely investigated regarding their shape-memory characteristics though bio-based SMPs are highly desired nowadays. In this study, a series of soybean oil-based shape-memory polyurethanes (SSMPUs) are prepared through a mild chemo-enzymatic synthetic route, and their properties are fully characterized with tensile testing, DSC, dynamic mechanical analysis (DMA), and shape-memory testing. Results show that SSMPUs are soft rubbers with tensile strength in the range of 1.9-2.2MPa and glass transition temperature in the range of 2-5°C, and possess good shape recoveries at RT when stretching ratio is 10, 20, and 30%, respectively. This work would promote the development of high-value-added plant oil-based shape-memory polyurethanes. Practical applications: Using annual renewable plant oil as feedstock, the synthesized SSMPUs show good shape recovery properties, which will make them applicable as potential alternatives to petroleum-based shape-memory materials. The simple and mild preparation process also contributes to the further exploration of plant oil to value-added functional materials.
KW - Plant oil
KW - Polyol
KW - Polyurethane
KW - Shape-memory
KW - Soybean oil
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U2 - 10.1002/ejlt.201200219
DO - 10.1002/ejlt.201200219
M3 - Article
AN - SCOPUS:84870889927
SN - 1438-7697
VL - 114
SP - 1345
EP - 1351
JO - European Journal of Lipid Science and Technology
JF - European Journal of Lipid Science and Technology
IS - 12
ER -