|Molar mass||120.195 g·mol−1|
|Melting point||−80 °C (−112 °F; 193 K)|
|Boiling point||146 °C (295 °F; 419 K)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Ethylidene norbornene (ENB) is an organic compound that consists of an ethylene group attached to norbornene. It is a colorless liquid. The molecule consists of two sites of unsaturation, one of which participates in the copolymerization and the second of which (the ethylidene) undergoes vulcanization. It is a monomer in the production of the commercial polymer EPDM. The compound consists of E- and Z-stereoisomers, but the mixtures are not separated.
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- Ballantyne, Bryan; Myers, Roy C.; Klonne, Dennis R. (1997). "Comparative acute toxicity and primary irritancy of the ethylidene and vinyl isomers of norbornene". Journal of Applied Toxicology. 17: 211–221. doi:10.1002/(SICI)1099-1263(199707)17:4<211::AID-JAT430>3.0.CO;2-X.CS1 maint: uses authors parameter (link)