Light-driven plastic motors

Y. Zhao, Smart Light-Responsive Materials, Wiley-Blackwell, Indianapolis 2009 Ch. Dugave (ed.), cis-trans Isomerisation in Biochemistry, Wiley-VCH, Weinheim 2006 For photomobile polymer materials and light driven plastic motors, see M. Yamada, Y. Yu, M. Kinoshita, C.J. Barret,... 

Yamada M, Kondo M, Mamiya J, Yu Y, Kinoshita M, Barrett CJ, Ikeda T. 2008. Photomobile pol5mer materials towards light driven plastic motors. Angew Chem Int Ed Engl 47 4986 4988. 

Photo-induced sophisticated 3D motions of a LCE film laminated on a flexible polyethylene sheet, (a) Schematic illustration of a light-driven plastic motor and photographs of time profiles of the rotation. (Source Adapted with permission from Reference [116].)... 

Yamada M, Kondo M, Mamiya JI, Yu Y, Kinoshita M, Barrett CJ, Ikeda T (2008) Photomobile polymer materials towards light-driven plastic motors. Angew Chem Int Ed 47 49864988 Yu Y, Ikeda T (2004) Aligmnait modulation of azobenzene-containing liquid crystal systems by photochemical reactions. J Photochem Photobiol C Photochem Rev 5 247-265 Yu H, Ikeda T (2011) Photocontrollable liquid-crystalline actuators. Adv Mater 23 2149-2180... 

Because of the unique photodeformable behavior of LCPs, a variety of soft actuators such as flexible inchworm walkers [34], plastic motors [35] and high-frequency oscillators [36] have been designed. For these soft photo-driven acm-ators based on LCPs, many factors determine the photo-driven behaviors of actuators, including the wavelength, polarization direction and intensity of the light source, and inherent parameters of actuators such as the concentration of azobenzene moieties, the crosslinking density and the molecular arrangement within actuators. Besides, their mechanical properties, conductivity and overall physical attributes should also be taken into consideration for practical applications (see in Fig. 10.2). 

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