ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
Ring-opening metathesis copolymerization of 5-norbornen-2-ylSystem. name: bicyclo[2.2.1]hept-5-en-2-yl. acetate (NBEAc; 80% endo) with cyclooctene (COE) and norborneneSystem. name: bicyclo[2.2.1]hept-2-ene. (NBE) was studied using WCl6/(CH3)4Sn as catalytic system. The copolymerization parameters (r1 = r2 = 1 for the NBEAc/NBE system and r1 = 1/r2 = 132 for the NBEAc/COE system) show that the reactivity of the monomers is not affected by the presence of an ester substituent but that it depends on the structure of the hydrocarbon cycle. Thus the well known inhibition effect of the ester group may be concluded not to lie in the propagation step of the catalytic cycle.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1992.021930109
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