Titlebook: Azo Polymers; Synthesis, Functions Xiaogong Wang Book 2017 Springer-Verlag Berlin Heidelberg 2017 Birefringence and dichroism.Liquid crysta

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Photoinduced Orientation and Anisotropy,zed light. The main types of the photoanisotropic materials include liquid crystalline azo polymers, amorphous azo polymers, amphiphilic azo polymers, azo polyelectrolytes, and azo block copolymers. The preparation, structure–property relationship, mechanism and models, and possible application in holography are presented in this chapter.

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Photoinduced Mass Transport,by-step way. The basic concepts and background are introduced at the beginning. Then, material design and preparation, optical setup, structure–property relationship, mechanism, and models are discussed in sequence. Meanwhile, some new observations and insights are discussed to document the recent progresses in this area.

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Photoresponsive Liquid Crystal Elastomers,d as the introduction. Then, material design and preparation, structure–property relationship, mechanism, and models are sequentially discussed. Meanwhile, several selected cases are presented to show the characteristics and potential applications of the functions.

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Introduction,a critically important role in determining the functions of azo polymers, their structures and spectroscopic features are discussed first. Light absorption and electronic excitation of the aromatic azo cores are then discussed to understand the initial steps to cause the photoresponsive variations o

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,,–, Isomerization, first to guide the reading, and the discussion starts from the ./. isomers of azobenzene and its thermal isomerization. More detailed discussions are given to understand the excited states, intermediates, and pathways during the isomerization. Some pioneering models are discussed here as the backgr

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Photoinduced Orientation and Anisotropy,cording and data storage based on the polarization gratings. The orientation induced by linearly polarized light endows the polymer films with dichroism and birefringence. Moreover, out-of-plane orientation and chirality can also be induced by irradiation with unpolarized light and circularly polari