Results 211 to 220 of about 25,021 (260)
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Medical applications of shape memory polymers
Biomedical Materials, 2007Shape memory polymers (SMP) are lightweight, have a high strain/shape recovery ability, are easy to process, and required properties can be tailored for variety of applications. Recently a number of medical applications have been considered and investigated, especially for polyurethane-based SMP.
Witold, Sokolowski +4 more
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Shape-Memory Polymers and Shape-Changing Polymers
2009The ability of polymers to respond to external stimuli is of high scientific and technological significance. In the last few years, research activities have been intensified substantially, exploring whether stimuli-sensitive polymers can be designed that move actively. In this review actively-moving materials were classified according to the underlying
Marc Behl +2 more
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Optimization of the shape memory effect in shape memory polymers
Journal of Polymer Science Part A: Polymer Chemistry, 2011AbstractIn this article, we show that given a thermoresponsive shape memory polymer, it is possible to alter a number of its properties, such as the recovery temperature, shape fixity ratio, maximum recovery stress, and final recovery stress (and even a right combination of some of them, e.g., the maximum recovery stress and final recovery stress ...
L. Sun +5 more
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Modeling the shape memory effect of shape memory polymer
SPIE Proceedings, 2009Dynamic mechanical analysis (DMA) tests are conducted on the styrene-based shape memory polymer (SMP) to investigate its state transition behaviors. Tensile tests at various constant temperatures are carried out to reveal the stressstrain- temperature relationship of the styrene-based SMP.
Bo Zhou +3 more
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pH‐Induced Shape‐Memory Polymers
Macromolecular Rapid Communications, 2012AbstractA novel pH sensitive shape‐memory polymer (SMP) is prepared by cross‐linking the β‐cyclodextrin modified alginate (β‐CD‐Alg) and diethylenetriamine modified alginate (DETA‐Alg): The pH reversible β‐CD‐DETA inclusion complexes serve as a reversible phase, and the cross‐linked alginate chains serve as a fixing phase.
Xiao-Juan, Han +8 more
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Light-induced shape-memory polymers
Nature, 2005Materials are said to show a shape-memory effect if they can be deformed and fixed into a temporary shape, and recover their original, permanent shape only on exposure to an external stimulus. Shape-memory polymers have received increasing attention because of their scientific and technological significance.
Andreas, Lendlein +3 more
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Magnetic Shape Memory - Polymer Hybrids
Materials Science Forum, 2016Martensitic Ni-Mn-Ga based alloys are known for the Magnetic Shape Memory (MSM) effect, which upon application of an external magnetic field can generate a strain up to 12 % depending on the microstructure of the martensite. The MSM effect occurs by rearrangement of the martensite variants, which is most advantageous in single crystals. Single crystals
Nilsén, Frans +7 more
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Shape-Memory and Shape-Changing Polymers
Polymer Reviews, 2013This article is a perspective that introduces several review articles in the field of shape-memory and shape-changing polymers. It is intended to emphasize the versatility of these materials as active, smart polymers as well as highlight the potential impact of these materials.
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Shape Memory Polymer Fibers: Materials, Structures, and Applications
Advanced Fiber Materials, 2021Jinsong Leng +2 more
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