Covalently crosslinked SMPs have sometimes been shown to have superior mechanical properties to those of physically crosslinked SMPs, including higher recovery stresses and higher cyclic recoverable strains. From a materials engineering standpoint, it is important that SMPs be easily processable into a wide range of desired geometries and that the thermomechanical properties of these SMPs be tailorable to meet various application demands. With this increasing number of proposed SMP applications comes an increased need for SMP versatility.
Recently, new SMP applications have been proposed for a highly diverse array of industries, including the fabric and clothing industry, the culinary industry, and the water filtration industry.
The aerospace industry has likewise driven SMPs research and development, and a significant number of aerospace studies have investigated SMPs as potential actuators for atmospheric and outer space applications. This industry drives multidisciplinary efforts in areas ranging from materials engineering to microelectronics, in addition to actively calling for the fabrication of SMP medical devices. The biomedical device industry has traditionally been regarded as one of the most promising avenues to achieving future developments in SMP-related research. The stimuli-responsive geometric transformations exhibited by shape memory polymers (SMPs) have drawn increasing interest from diverse audiences in the scientific community.
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