ISSN:
0449-296X
Keywords:
Physics
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The reaction of 4-vinylpyridine (4-VP) with acylating agents in diethyl ether was investigated. Acetyl chloride (AcCl) and trifluoroacetic anhydride [(TFAc)2O] yield colored oligomers with 4-VP, denoted P-4VP - AcCl (III) and P-4VP - (TFAc)2O (IV). Nuclear magnetic resonance spectrometry was used to analyze these products. A structure (XII), representing a random copolymer resulting from 1,2-polyaddition and 1,6-polyaddition to 4-VP, is proposed for III and IV. Alternative mechanisms which explain these observations are discussed. Acetic anhydride (Ac2O) does not acylate 4-VP. It is proposed that this result is caused by the inability of Ac2O to quaternize 4-VP as an initial step leading to polymerization.
Additional Material:
2 Tab.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pol.1972.150100720
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