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# PU-antibacterial

# Photosensitizer

## BTDA-Diol
![ima.png](http://img.liuxuan.xyz/images/2020/10/12/image5444c417773edb6f.png)
## DAAQ
![image37ad31ad0ad4a80c.png](http://img.liuxuan.xyz/images/2020/10/12/image37ad31ad0ad4a80c.png)
### Absorption Spectrum
![image.png](http://img.liuxuan.xyz/images/2020/10/12/image.png)

# Experiment Section

## Synthesis of  5,5'-carbonylbis(2-(2-hydroxyethyl)isoindoline-1,3-dione) (BTDA-Diol)

### Procedure

1. Involve the condensation reaction 2-fold excess of amino derivative with respect to
BTDA in polar aprotic solvent DMF (20 ml)
2. Reflux the reaction mixture for 5 hours
3. Monitor the progress of the reaction by TLC (MeOH:CHCl3, 1:1, v/v)
4. Cool the reaction mixture and precipitate in DI water three times
5. Freeze-dry than put in 100°C vaccum oven

### NMR
![NMR](http://img.liuxuan.xyz/images/2020/10/16/image.png)

![image344bc7ebe236e17f.png](http://img.liuxuan.xyz/images/2020/10/16/image344bc7ebe236e17f.png)

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