Review Shape-memory polymers

Shape memory polymers are a new class of living polymers with dual shape capability. Shape B is given in the initial processing step, but if exposed to an appropriate stimulus, shape B can be changed from shape A in a predetermined way. We reviewed the fundamental aspects of appropriate polymer structure, custom programming and recovery process, and molecular design for quantifying shape memory effect. Shape memory studies were originally based on thermally induced double shape effects. This concept is extended to other stimuli by indirect thermal or direct activation by coping with stimulus-sensitive populations at the molecular level. Finally, a polymer which can be multifunctional is introduced. In addition to their dual shape capability, these active materials are also biologically functional or biodegradable. Emphasis on potential applications of materials such as active medical devices

Other biomedical applications include the use of biodegradable elastic shape memory polymers. Biodegradable implant materials are currently available for minimally invasive surgery via degradable thermoplastic polymers. These polymers will be able to change their shape as the temperature rises, resulting in a deteriorated shape and susceptibility to deterioration of the suture. As a result, the implant can be adapted through a small incision, allowing the surgeon to easily perform complex deformations and sutures and other material adjuvants can naturally biodegrade after the operation is complete.

Here, the shape memory effect (SME) may play an important role as a new function of the polymer. Shape memory polymers (SMPs) can change their shape in a predetermined way as needed upon exposure to an appropriate stimulus. Here we will focus on heat induced SMP caused by heat. Switching temperature (T body temperature can be inserted into the body through a compressed or elongated temporary shape small incision.) A large number of implants, when placed in the body, change by heating to body temperature. Individual needs of patients are adjusted, and usually small businesses need to be combined with other functions such as degradability and drug release.

Shape memory polymers are a new class of living polymers with dual shape capability. Shape B is given in the initial processing step, but if exposed to an appropriate stimulus, shape B can be changed from shape A in a predetermined way. We reviewed the fundamental aspects of appropriate polymer structure, custom programming and recovery process, and molecular design for quantifying shape memory effect. Shape memory studies were originally based on thermally induced double shape effects. This concept is extended to other stimuli by indirect thermal or direct activation by coping with stimulus-sensitive populations at the molecular level. Finally, a polymer which can be multifunctional is introduced. In addition to their dual shape capability, these active materials are also biologically or biodegradable.