Abstract
Additive manufacturing (AM), or 3D printing, has arisen as a booming technology for the development of more creative devices and potential functional applications in biomedical, electronics, sensors, and tissue engineering through the pioneering combination of shape memory polymers (SMPs). However, restricted printable materials and poor qualities of existing 3D printing materials in terms of mechanical strength, curing speed, and thermomechanical shape memory have impeded the adoption of SMPs in 3D printing. Several SMPs are available in the market in response to these drawbacks. This paper is contributing a review in advancement of polyurethanes as SMP polymers in 3D printing.
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