Bicyclo(2.2.1)hept-5-ene-2-carbonitrile → HCID 70008117, compound

Participants

Reaction Steps

The copolymerisation was carried out similarly to Example 13. However, 11 mg (22.1 μmoles) of (tBuO)3W≡CtBu, 793 mg (6.63 mmoles) of 5-cyano-2-norbornene and 294 mg (2.21 mmoles) of cyclopentene were weighed out. A molar ratio of 5-cyano-2-norbornene:cyclopentene:(tBuO)3W≡CtBu=300:100:1 was adjusted. 1,2-dichloroethane (C2H4Cl2) was used as solvent. Poly(5-cyano-2-norbornene/cyclopentene) was obtained in 64% yield. The molecular weight of this copolymer was {overscore (M)}w=484,500 g/mole. A DSC measurement of this copolymer gave a glass transition temperature Tg=109° C.

Provenance & Evidence