Polyisoprene trans
- CAS NO.：104389-32-4
- Empirical Formula: (C5H8)n
- Molecular Weight: 0
- MDL number: MFCD00084438
- EINECS: 201-143-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:51:19
What is Polyisoprene trans?
Description
Trans-1,4-polyisoprene rubber (i.e., PIR, sometimes called Gutta Percha in the past) is a synthetic rubber with properties similar to those of its natural counterpart. It was first industrially prepared during World War II because of a lack of supply of natural rubber but despite containing fewer impurities than natural rubbers and having a simpler preparation process it is not widely used because it is also more expensive. Mechanical properties and chemical resistance is identical to that of natural rubber. As with many other rubbers its mechanical properties can be also improved by the vulcanization process.
Chemical properties
white pellets
Properties of Polyisoprene trans
| Density | 0.904 g/mL at 25 °C(lit.) |
| form | pellets |
| color | White |
| CAS DataBase Reference | 104389-32-4 |
Safety information for Polyisoprene trans
Computed Descriptors for Polyisoprene trans
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