Nonconventional photoluminescence from sulfonated acetone-formaldehyde condensate with aggregation-enhanced emission

The fluorescence of sulfonated acetone-formaldehyde condensate (SAF) with a nonconventional chromophore is reported for the first-time. The fluorescence intensity of SAF can be enhanced by the introduction of phenols to obtain sulfonated phenol-acetone-formaldehyde (SPAF) and the emission color can be changed. Both of them show aggregation-enhanced emission (AEE) properties.