Product Name: 9,9-Bis(4-amino-3-methylphenyl)fluorene
CAS Number: 107934-60-1
Description:
9,9-Bis(4-amino-3-methylphenyl)fluorene is a specialty aromatic diamine, representing a methylated derivative of the well-known BAPF (9,9-Bis(4-aminophenyl)fluorene). This compound features the characteristic rigid fluorene backbone linked to two 2-methylaniline units. Supplied as a solid powder, it functions primarily as a diamine monomer for synthesizing high-performance polymers, particularly polyimides. The presence of the methyl groups adjacent to the amine functionality can influence the monomer’s reactivity, solubility characteristics, and the final properties of the derived polymers (such as potentially enhanced solubility, altered glass transition temperature (Tg), or modified dielectric behavior) compared to those made from unsubstituted BAPF. We supply this specialized diamine for applications requiring fine-tuned polymer properties.
Properties:
| Property | Value |
| Chemical Formula | |
| Molar Mass | |
| CAS Number | 107934-60-1 |
| Appearance | Light-colored solid/powder |
| Melting Point | Approx. $185-190 |
| Boiling Point | High boiling point; likely decomposes at atmospheric pressure |
| Solubility | Low solubility in water; Soluble in organic solvents |
| Synonyms | Methylated BAPF derivative, 4,4′-(9H-Fluoren-9-ylidene)bis(2-methylaniline) |
| Purity | e.g., >98%, Polymer Grade |
| Storage Conditions | Store in a tightly sealed container in a cool, dry, dark place. |
Usage:
9,9-Bis(4-amino-3-methylphenyl)fluorene is primarily utilized as a specialized diamine monomer:
- Specialty Polyimide Synthesis: Reacted with dianhydrides to create polyimides where specific modifications compared to standard BAPF-based polyimides are desired.
- Example: Development of polyimides with enhanced solubility for easier processing into films or coatings.
- Example: Used in gas separation membranes where the methyl groups can tune permeability and selectivity.
- Example: Employed in electronic applications where fine-tuning of dielectric properties or thermal characteristics is necessary.
- Other High-Performance Polymers: Can serve as a diamine component in polyamides, poly(amide-imide)s, or as a specialty curing agent for epoxy resins.
- Material Science Research: A valuable tool for researchers studying structure-property relationships in fluorene-containing polymers, allowing comparison with non-methylated analogues.