Abstract: The present invention relates to a novel diamine compound, wherein two substituents R and R? are introduced asymmetrically, and a polymer thereof. The polymer may have excellent solubility in the organic solvent and allows for easy processibility after imidization, thus giving proper film maintaining superior properties, such as thermal, mechanical, and optical properties for applications in electrical, electronic, or optical materials.

Abstract: The present invention relates to water-soluble photochromic compounds for labeling biomolecules and a method of detecting biomolecules using the same. More specifically, relates to water-soluble photochromic compounds for labeling biomolecules, in which a functional group rendering photochromic molecules water-soluble is linked to a functional group capable of binding to biomolecules, and a method of detecting biomolecules using the same. Because the disclosed water-soluble photochromic compounds exhibit the color corresponding to the wavelength of visible light range, they allow signals to be easily detected not only with an UV-VIS spectrophotometer but also visually. Accordingly, the photochromic compounds can be advantageously used in sensors for diagnosing diseases.

Abstract: The present invention relates to water-soluble photochromic compounds for labeling biomolecules and a method of detecting biomolecules using the same. More specifically, relates to water-soluble photochromic compounds for labeling biomolecules, in which a functional group rendering photochromic molecules water-soluble is linked to a functional group capable of binding to biomolecules, and a method of detecting biomolecules using the same. Because the disclosed water-soluble photochromic compounds exhibit the color corresponding to the wavelength of visible light range, they allow signals to be easily detected not only with an UV-VIS spectrophotometer but also visually. Accordingly, the photochromic compounds can be advantageously used in sensors for diagnosing diseases.

Abstract: Polymers comprising a polymer backbone comprising one or more degradable units are described. The polymer may additionally comprise two or more polymer segments comprising radically (co)polymerizable vinyl monomer units. The degradable units may be independently selected from, but not limited to, at least one of hydrodegradable, photodegradable and biodegradable units between the polymer segments and dispersed along the polymer backbone. The degradable units may be derived from one or more monomers comprising a heterocyclic ring that is capable of undergoing radical ring opening polymerization, a coupling agent, or from a polymerization initiator, radically polymerizable monomers, as well as other reactive sources. Embodiments of the degradable polymer of claim are capable of degrading by at least one of a hydrodegradation, photodegradation or biodegradation mechanisms to form at least one of telechelic oligomer and telechelic polymeric fragments of the polymer.