一种基于宏微反应器阴离子聚合制备聚烯烃的方法
By optimizing anionic polymerization using macro- and micro-reactors, the problems of low-temperature operation in polar solvents and long reaction time in non-polar solvents have been solved, enabling efficient preparation and molecular weight distribution control of polyolefins and promoting industrial applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING TECH UNIV
- Filing Date
- 2025-01-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing anionic polymerization technologies require low-temperature operation in polar solvents and long reaction times in non-polar solvents, and are sensitive to water and oxygen. Microreactors also face challenges in large-scale preparation and have a wide molecular weight distribution.
Anionic polymerization was carried out using macro-micro reactors. By designing a microchannel reactor with helical internal components, better mass and heat transfer effects were achieved. The reactor scale was expanded and passive reinforcement internal components were introduced to optimize the polymerization reaction kinetics.
It significantly shortens reaction time, improves conversion rate and throughput, reduces molecular weight distribution index, and enables efficient spatiotemporal control and large-scale preparation of polyolefins.
Smart Images
Figure CN119874972B_ABST