448885
Polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene, sulfonated solution
5 wt. % in 1-propanol and dichloroethane
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composition
styrene, 29 wt. %
sulfonated styrene units, 55-65%
concentration
5 wt. % in 1-propanol and dichloroethane
refractive index
n20/D 1.405
bp
79 °C
density
0.8 g/mL at 25 °C
SMILES string
C=C.CCC=C.OS(=O)(=O)c1ccc(C=C)cc1.OS(=O)(=O)c2cccc(C=C)c2.OS(=O)(=O)c3ccccc3C=C
General description
Polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene, sulfonated solution can be cast into a film with a conductivity of 7x10-2 S/cm in the fully hydrated acid form. Films have good optical transparency.
Application
The films may be used as fuel cell membrane, electrochromic uses, biosensors and anti-thrombogenic and endothealizing coatings.
Packaging
Packaged in glass bottles
Preparation Note
To cast a film:
1. Concentrate solution to 600 centapoise viscosity (typically 6-9 wt.% polymer).
2. Preheat the casting surface to 35 °C. A clean, flat PTFE-coated glass surface is recommended.
3. Secure a silicone release liner to the casting surface.
4. Place a small drop of the polymer solution on the release liner.
5. Draw the polymer solution down the release liner.
6. Dry the film for 30 min. For controlled evaporation it is recommended to cover surface with aluminum foil that has been perforated with small pinholes.
1. Concentrate solution to 600 centapoise viscosity (typically 6-9 wt.% polymer).
2. Preheat the casting surface to 35 °C. A clean, flat PTFE-coated glass surface is recommended.
3. Secure a silicone release liner to the casting surface.
4. Place a small drop of the polymer solution on the release liner.
5. Draw the polymer solution down the release liner.
6. Dry the film for 30 min. For controlled evaporation it is recommended to cover surface with aluminum foil that has been perforated with small pinholes.
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Danger
hcodes
Hazard Classifications
Carc. 1B - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Central nervous system
supp_hazards
Storage Class
3 - Flammable liquids
wgk_germany
WGK 3
flash_point_f
59.0 °F
flash_point_c
15 °C
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