Cyclic Fluoropolyether Compounds With Controlled Molecular Weight
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Solution Overview
Problem
Existing fluoropolyether compounds are primarily chain compounds, and cyclic compounds containing a fluoropolyether group have not been known.
Innovation Solution
The development of a fluorine-containing cyclic compound represented by a specific formula, achieved through coupling reactions of fluoropolyether group-containing chain compounds with coupling functional groups at both ends to form a cyclic structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If chain compounds are used as fluoropolyether group-containing compounds, then they have been widely applied in various fields, but cyclic compounds containing fluoropolyether groups have not been known
Solution Approach 1:
The patent changes the fundamental parameter of molecular architecture from linear chain structure to cyclic structure while maintaining the fluoropolyether functional groups. This structural parameter change enables the compound to achieve new properties and applications that were not available in chain compounds, resolving the contradiction between application versatility and structural complexity.
2Device complexity
If cyclic compounds are synthesized from chain compounds with coupling functional groups, then new molecular structures are achieved, but control of molecular weight and distribution becomes challenging
Solution Approach 1:
The patent introduces coupling functional groups at the terminal positions of chain compounds before cyclization. This preliminary action enables controlled intramolecular coupling reactions that form cyclic structures with predictable molecular weights. By pre-equipping the chain compounds with specific functional groups at defined positions, the invention achieves both structural diversity and manufacturing precision in the resulting cyclic compounds.
Data Source
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AI summary
The present invention provides a fluorine-containing cyclic compound represented by the following formula (1): wherein A is a divalent organic group; and RF is a divalent organic group containing a fluoropolyether group.