Effect of Substituents on the Copolymerization Parameters of Some Phenolic Monomers
作者:
S.K. Chatterjee,
B.P. Singh,
L.S. Pachauri,
期刊:
Journal of Macromolecular Science: Part A - Chemistry
(Taylor Available online 1981)
卷期:
Volume 16,
issue 3
页码: 707-715
ISSN:0022-233X
年代: 1981
DOI:10.1080/00222338108056817
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Copolymerization parameters of some halogen substituted phenolic monomers have been determined by the linear graphical method of Kelen and Tüdös. The order of reactivity of p-chlorophenol, p-bromophenol and p-iodophenol is found to be the reverse of the order of electronegativity of their halogen substituents when they are copolymerized with p-hydroxy-benzoic acid. On copolymerization with p-cresol, these halogen substituted phenols have reactivity in the same order as the electronegativity of their substituents. This reversal of reactivity of phenolic monomers has been interpreted in terms of (1) opposite polarization caused by electrophilic or nucleophilic substituents present in the common monomers, and (2) the magnitude of their resonance stabilization.
点击下载:
PDF (346KB)
返 回