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Authors
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Luston, J. ; Kronek, J. ; Böhme, F.
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Title
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Synthesis and Polymerization Reactions of Cyclic Imino Ethers I. Ring-Opening Homopolyaddition of AB--Type Hydroxyphenyl-Substituted 2-Oxazolines
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Date
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24.01.2006
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Number
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13463
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Abstract
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Homopolyaddition reactions of AB-type monomers containing a 2-oxazoline and a phenol group in different positions of the phenyl ring, namely, 2-(4-hydroxyphenyl)-2-oxazoline, 2-(3-hydroxyphenyl)-2-oxazoline, 2-(2-hydroxyphenyl)-2-oxazoline, and 2-(4-hydroxyphenyl)-4,4-dimethyl-2-oxazoline, were studied. Except for 2-(4-hydroxyphenyl)-4,4-dimethyl-2-oxazoline, the reaction carried out in bulk or a solution of highly boiling solvents resulted in the formation of poly(ether amide)s with molecular weights in the range of 10<SUP>3</SUP> to 10<SUP>4</SUP> as measured by vapor pressure osmometry and gel permeation chromatography. A mechanism of the growth reaction, including a nucleophilic attack of a phenol group to a 2-oxazoline ring in the 5-position, was suggested. The polymerization was accompanied by a side reaction of the amido groups formed by the primary reaction of the 2-oxazoline ring. This led to branching of the main chain. The thermal properties of the prepared polymers were evaluated. © 2005 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 343-355, 2006
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Publisher
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Journal of Polymer Science: Part A: Polymer Chemistry
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Wikidata
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Citation
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Journal of Polymer Science: Part A: Polymer Chemistry 44 (2006) 343-355
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DOI
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https://doi.org/10.1002/pola.21159
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