Preparation method and application of performance-adjustable dynamic sulfur-rich polymer material

• Main Authors: ZHANG QI, QU DAHUI, HUANG ZHENGTIE, DENG YUANXIN
• Format: Patent
• Language: Chinese; English
• Published: 22.12.2023
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention discloses a preparation method and application of a dynamic sulfur-rich polymer material with adjustable performance, and the preparation method comprises the following steps: heating, melting and copolymerizing elemental sulfur (S8) and disulfide five-membered ring monomers containing different side chain functional groups, namely lipoic acid, lipoic acid amide and/or derivatives thereof, in different mass ratios, and cooling and solidifying to obtain the dynamic sulfur-rich polymer. By regulating and controlling the disulfide five-membered ring side chain unit, the obtained sulfur-rich polymer material has broad-spectrum adjustable performance and dynamic performance. The raw material used in the invention is cheap and easily available industrial waste elemental sulfur, and the preparation method is green and simple disulfide five-membered ring micromolecular monomer. The preparation process of the sulfur-rich polymer disclosed by the invention has the reaction characteristics of no need of a