ISSN:
1436-2449
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Summary Initiation of the cationic polymerization of isobutylene by BCl3 requires a cocatalyst in most cases. However, we found conditions (θ=-30°C, CH2Cl2 as solvent, BCl3 ⩾ 0.0l m) where a direct initiation by BCl3 (i.e. with no cocatalyst) is possible. We showed that in such conditions HCl is not a cocatalyst and that H2O content is too low to explain the results (high vacuum and highly purified reactants and solvent).The conversion increases linearly with tine increasing concentration of BCl3.A mechanism is proposed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00256882
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