6533b7d5fe1ef96bd1264ffd
RESEARCH PRODUCT
The effect of reaction conditions on the chain end structure and functionality during dehydrochlorination oftert-chlorine-telechelic polyisobutylene by potassium tert-butoxide
Axel H. E. MüllerJesper FeldthusenBéla IvánBéla Ivánsubject
Reaction conditionschemistry.chemical_classificationOlefin fiberPolymers and PlasticsDouble bondPotassiumOrganic Chemistrychemistry.chemical_elementchemistry.chemical_compoundchemistryChain (algebraic topology)Potassium tert-butoxidePolymer chemistryMaterials ChemistrySurface modificationTetrahydrofurandescription
Dehydrochlorination of tert-chlorine-telechelic polyisobutylene with potassium tert-butoxide in refluxing tetrahydrofuran is quantitative after 22 h, but results in ca. 3% endo olefin chain ends which are not reactive in some subsequent functionalization reactions. The formation of these undesired structures is most likely due to simultaneous thermally induced HCl loss. Lower temperatures and longer reaction times led to exclusive formation of external double bonds in some cases but to incomplete dehydrochlorination.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-12-01 | Macromolecular Rapid Communications |