TY - GEN
T1 - Characterization of thermomechanical properties of polypyrrole nanowires
AU - Sul, Onejae
AU - Jang, Seongjin
AU - Yang, Eui Hyeok
PY - 2010
Y1 - 2010
N2 - The polypyrrole (Ppy) is widely known as a conducting polymer, and many types of microactuators have been demonstrated based on volume change induced by oxidation-reduction reaction of polymer in liquid or dry environments. However, the thermomechanical property of Ppy is not well known. Here we report the measurement of Young's modulus of polypyrrole nanowires and coefficient of thermal expansion (CTE) by Lateral Force Microscopy. Young's modulus was measured via tip-deflection of a cantilevered Ppy nanowire. By measuring the applied force and deflection, the Young's modulus was determined to be 2.3 ± 0.7 GPa. A thin metallic (Cu) film was deposited on only one side of the Ppy nanowire to form bimorph nanoactuators. The CTE was determined to be 12 × 10-6/K.
AB - The polypyrrole (Ppy) is widely known as a conducting polymer, and many types of microactuators have been demonstrated based on volume change induced by oxidation-reduction reaction of polymer in liquid or dry environments. However, the thermomechanical property of Ppy is not well known. Here we report the measurement of Young's modulus of polypyrrole nanowires and coefficient of thermal expansion (CTE) by Lateral Force Microscopy. Young's modulus was measured via tip-deflection of a cantilevered Ppy nanowire. By measuring the applied force and deflection, the Young's modulus was determined to be 2.3 ± 0.7 GPa. A thin metallic (Cu) film was deposited on only one side of the Ppy nanowire to form bimorph nanoactuators. The CTE was determined to be 12 × 10-6/K.
UR - http://www.scopus.com/inward/record.url?scp=77954288254&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954288254&partnerID=8YFLogxK
U2 - 10.1115/IMECE2009-12371
DO - 10.1115/IMECE2009-12371
M3 - Conference contribution
AN - SCOPUS:77954288254
SN - 9780791843857
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings
SP - 301
EP - 302
BT - Proceedings of the ASME International Mechanical Engineering Congress and Exposition 2009, IMECE 2009
T2 - ASME 2009 International Mechanical Engineering Congress and Exposition, IMECE2009
Y2 - 13 November 2009 through 19 November 2009
ER -