Sung Moon Park, Seung Min Lee, Young Je Kwon, Kie Yong Cho, Soaram Kim, Eun Kwang Lee
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Preparation of polyurethane sulfonate films as a motion sensing substrate with the compliant coating of PEDOT:PSS
With the expansion of the virtual reality (VR) and augmented reality (AR) market, the close transmission of movement through human–machine interaction has become increasingly important. Polyurethane, a fiber used in various clothing and suits, possesses suitable elasticity and tensile strength. This makes it a material that can be closely attached to the skin without causing discomfort. However, since polyurethane is not a conductor, there is a disadvantage that it is impossible to detect electrical signals. Here, we synthesized polyurethane sulfonate (PUS) which is a hydrophilic modified polyurethane containing a high amount of sulfonate groups. This modified polyurethane shows the improved affinity with poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) by intermolecular interaction of sulfonate group and PSS. Finally, an elastic strain sensor was fabricated with PEDOT:PSS coated on PUS over a large area of 100 cm2. This strain sensor induces resistance changes according to the elastic expansion of the PUS. The fabricated strain sensor was applied to finger joints and biceps, successfully detected movements corresponding to bending and expansion.
期刊介绍:
Original research on all aspects of polymer science, engineering and technology, including nanotechnology
Presents original research articles on all aspects of polymer science, engineering and technology
Coverage extends to such topics as nanotechnology, biotechnology and information technology
The English-language journal of the Polymer Society of Korea
Macromolecular Research is a scientific journal published monthly by the Polymer Society of Korea. Macromolecular Research publishes original researches on all aspects of polymer science, engineering, and technology as well as new emerging technologies using polymeric materials including nanotechnology, biotechnology, and information technology in forms of Articles, Communications, Notes, Reviews, and Feature articles.