Embodiments of the present disclosure generally provide compositions and methods related to articles that display reversible photoresponsive behavior.

Embodiments of the present disclosure generally provide compositions and methods related to articles that display reversible photoresponsive behavior.

A polymerizable compound has a practical low melting point, excellent solubility in a general-purpose solvent, and can produce an optical film at low cost, exhibits low reflected luminance, and achieves uniform conversion of polarized light over a wide wavelength band, an optically anisotropic article.

Various photocrosslinkable electrochromic polymers are disclosed. The polymers are suitable for an electrochromic layer of an electrochromic device. The polymers are formed with a two-step synthesis method that includes forming a polymer precursor with one or more chromophore blocks, and mixing the polymer precursor with photocrosslinkable monomer units to form the polymer.

Various photocrosslinkable electrochromic polymers are disclosed. The polymers are suitable for an electrochromic layer of an electrochromic device. The polymers are formed with a two-step synthesis method that includes forming a polymer precursor with one or more chromophore blocks, and mixing the polymer precursor with photocrosslinkable monomer units to form the polymer.

Embodiments of the disclosure generally provide methods related to articles that display reversible photoresponsive behavior.

A composition includes: a polymer including a repeating unit represented by formula (1); and a solvent. In the formula (1), Ar.sup.1 is a divalent group including an aromatic ring having 10 to 40 ring atoms; and R.sup.0 is a monovalent group including a heteroaromatic ring which includes a sulfur atom as a ring-forming atom.

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A composition includes: a polymer including a repeating unit represented by formula (1); and a solvent. In the formula (1), Ar.sup.1 is a divalent group including an aromatic ring having 10 to 40 ring atoms; and R.sup.0 is a monovalent group including a heteroaromatic ring which includes a sulfur atom as a ring-forming atom.

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Disclosed are a preparation method and application of a 4-methyl-5-vinylthiazolyl polymerized spherical ionic liquid catalyst. The method comprises: preparing a functional ionic liquid monomer successfully by taking 4-methyl-5-vinylthiazole as the matrix, and preparing the polymerized spherical ionic liquid from the monomer. The catalyst combines the advantages of both ionic liquid and the polymer, and has the characteristics of large specific surface area, high catalytic activity, high mass transfer rate, good selectivity, high stability, easy recycling and separating, environmental friendliness, wide industrial application prospect, etc. The spherical ionic liquid is made into a novel catalytic packing and then put into a reactive distillation column for continuous reactive distillation of esterification and transesterification to realize the organic combination of the ionic liquid and the reactive distillation technology, achieving good catalytic activity, high product yield, environmental friendliness, and low corrosivity, which has great significance in realizing an environment-friendly process.

Various photocrosslinkable electrochromic polymers are disclosed. The polymers are suitable for an electrochromic layer of an electrochromic device. The polymers are formed with a two-step synthesis method that includes forming a polymer precursor with one or more chromophore blocks, and mixing the polymer precursor with photocrosslinkable monomer units to form the polymer.