Polyacrylonitrile
- Polyacrylonitrile
-
Pour les articles homonymes, voir
PAN.
| Polyacrylonitrile |
 |
| Général |
| No CAS |
25014-41-9 |
| Propriétés chimiques |
| Formule brute |
C3H3N [Isomères](C3H3N)x |
| Masse molaire[1] |
53,0626 ± 0,0028 g·mol-1
C 67,91 %, H 5,7 %, N 26,4 %,
|
| Propriétés électroniques |
| constante diélectrique |
5,5 (1 kHz, 25 °C)
4,2 (1 MHz, 25 °C)[2] |
|
Unités du SI & CNTP, sauf indication contraire.
|
Le polyacrylonitrile (PAN) est un polymère très cohésif. Il fait partie de la famille des acryliques (comme le PMMA).
Structure moléculaire :
H H
| |
... -C-C- ...
| |
H CN
Ce polymère semi-cristallin se dégrade thermiquement dès 200 °C.
Utilisations :
Remarque : l'acrylonitrile est utilisé comme comonomère minoritaire pour fabriquer le SAN, l'ABS et le NBR.
Notes et références
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