Preparation method and solvent-free recovery method of crystalline polydisulfide material
Crystalline polydisulfide materials were prepared through organic acid catalysis and annealing processes, and solvent-free supramolecular recovery methods were adopted to solve the problems of high temperature and solvent consumption in the existing polymer recovery methods, achieving high-efficiency and low-energy polymer recovery, which meets the requirements of green chemistry.
Patent Information
- Application Number
- CN202411624610.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2044-11-14
AI Technical Summary
Existing polymer recycling methods rely on entropy drive and require high temperature and/or solvent dilution, resulting in problems of energy consumption and solvent waste liquid, making it difficult to achieve minimum energy consumption and maximum environmental benefits throughout the life cycle.
The crystalline polydisulfide material is prepared by organic acid catalysis and annealing process, and the crystalline polydisulfide material is depolymerized and recovered into monomers under high temperature conditions through solvent-free supramolecular recovery method, thereby achieving efficient solvent-free depolymerization and recovery.
It has achieved efficient solvent-free recovery of crystalline polydisulfide materials, with monomer recovery yields reaching more than 90%, mild process conditions, comply with green chemistry requirements, and reduced energy consumption and carbon emissions.