TY - GEN
T1 - The effect of cross linker concentration in the physical properties of shape memory gel
AU - Kabir, M. Hasnat
AU - Ahmed, Kumkum
AU - Gong, Jin
AU - Furukawa, Hidemitsu
N1 - Publisher Copyright:
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.
PY - 2015
Y1 - 2015
N2 - The shape memory hydrogels were synthesized and studied the physical properties. The gels were made by a hydrophilic monomer named N, N-dimethyl acrylamide (DMAAm) and a hydrophobic monomer named stearyl acrylate (SA). The water-swollen hydrogels show well transparency and shape memory property while gels absorb large water content. The properties were characterized by varying the cross-link concentration, whereas the concentration of other chemical components was remained constant. In this study, the DMAAm and the SA ratio was 3:1 to make one mole solution. It is observed that the swelling ratio slightly depends on the cross-link concentration at certain amount. However, mechanical properties strongly depend on the cross-link concentration. Thermal properties were investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). DSC spactra of dried samples exhibits complex crystalline nature, while swollen samples show homogeneous crystallinity. A well thermal stability is observed regard less of cross-link concentration.
AB - The shape memory hydrogels were synthesized and studied the physical properties. The gels were made by a hydrophilic monomer named N, N-dimethyl acrylamide (DMAAm) and a hydrophobic monomer named stearyl acrylate (SA). The water-swollen hydrogels show well transparency and shape memory property while gels absorb large water content. The properties were characterized by varying the cross-link concentration, whereas the concentration of other chemical components was remained constant. In this study, the DMAAm and the SA ratio was 3:1 to make one mole solution. It is observed that the swelling ratio slightly depends on the cross-link concentration at certain amount. However, mechanical properties strongly depend on the cross-link concentration. Thermal properties were investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). DSC spactra of dried samples exhibits complex crystalline nature, while swollen samples show homogeneous crystallinity. A well thermal stability is observed regard less of cross-link concentration.
KW - Cross-linker
KW - Differential Scanning Caloromitry (DSC)
KW - Mechanical Properties
KW - Shape Memory Gel (SMG)
KW - Thermal Analysis
KW - Thermogravimitric Analysis (TGA)
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U2 - 10.1117/12.2084181
DO - 10.1117/12.2084181
M3 - Conference contribution
AN - SCOPUS:84943385972
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Behavior and Mechanics of Multifunctional Materials and Composites 2015
A2 - Goulbourne, Nakhiah C.
PB - SPIE
T2 - Behavior and Mechanics of Multifunctional Materials and Composites 2015
Y2 - 9 March 2015 through 11 March 2015
ER -