

This project belongs to the field of ldquo; Supramolecular assembly and molecular regulation of luminescent materials in ldquo; Chemistry rdquo;. Focusing on the key scientific issues of precise construction, precise characterization and fine performance control of organic functional supramolecules and supramolecular polymer soft materials, with the support of fund projects such as the National Natural Science Foundation of China, the Ministry of Education, the Shanghai City Science and Technology Commission and the Education Commission, effective exploration and systematic applied basic research have been carried out: The first is to accurately design functional dye guests and macrocyclic hosts, and build supramolecular and supramolecular polymer soft material systems with specific assembly modes and functions based on the interaction of guests and guests; the second is to fine regulate functional dye guest units, using a variety of stimuli to finely regulate the signal response and function of supramolecular soft materials. The main research results are as follows: 1) Accurately constructing a series of supramolecular soft materials that recognize functional guests and guests. Using the recognition between fine organic functional dye guests and hydrophilic macrorings, we use the recognition between fine organic functional dye guests and hydrophilic macrorings to build water-phase supramolecules and supramolecular polymers. Strategy, a series of functional hydrogel soft material materials were successfully prepared: supramolecular polymer soft materials with rapid self-healing functions were prepared. Hydrogels are conveniently prepared by utilizing the supramolecular recognition between the side-chain type beta;-cyclodextrin host polymer and the alpha;-bromonaphthalene dye guest polymer, which can quickly self-repair at room temperature; a supramolecular polymer with covalent-noncovalent controllable conversion is constructed. Irradiation with different wavelengths of light can allow reversible conversion between the non-covalent supramolecular polymer and the covalent polymer, and at the same time, the system can convert between the solution state and the hydrogel state. 2) Accurate characterization of functional supramolecules and supramolecular polymer soft materials A new strategy of ldquo; identifying and characterizing supramolecules and supramolecular polymers through the room temperature phosphorescence (RTP) signal of dyes is proposed. Functional phosphorescent dye guests are recognized through the inclusion of host macrocycles. A series of functional aqueous supramolecules and supramolecular polymers with RTP signal output have been constructed, expanding the new RTP emission function of traditional organic dyes. 3) Fine control of functional guest and guest supramolecules and supramolecular polymer soft materials regulates the luminescent properties of supramolecular systems based on dyes by regulating the guest and guest interactions, and constructs a supramolecular soft material system with specific luminescent functions. Through stimulation such as light, pH value and redox, the polychromatic luminescence, assembly conformation and morphology, and macro material properties of a series of supramolecules and supramolecular polymers composed of dye guests and macrocyclic hosts (or self-assembly of functional dyes) are realized. The fine control of material properties has expanded the new luminescence and assembly functions of traditional dyes, and developed a series of functional supramolecular intelligent soft material systems. This project published 32 SCI papers, and he cited SCI more than 1780 times. Cultivate 8 doctorates and 16 masters, one of whom was selected for the National 100 Excellent Doctoral Thesis Nomination Award, and one was selected for the Outstanding Doctoral Thesis of Shanghai City. 8 representative papers, including J. Am. Chem. Soc.、Angew. Chem. Int. Ed.,Acc. Chem. Res. There were 3 papers with an impact factor greater than 10, and the SCI cited 666 times, and a single SCI cited a maximum of 258 times. 3 papers were selected as ESI highly cited papers, and 1 paper was selected as ESI hot papers. The project completion person currently serves as Executive Editor of Dyes Pigm., Chinese Chem. Lett., Sci. China Chem.,Editorial member of journals such as Journal of East China University of Science and Technology (Natural Science Edition) and Dyes and Dyeing, and young editorial member or executive editorial member.
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