Ionic Interactions in Blends of Polyamidines and Proton Donor Terminated Poly(alkylene ether)s

4-(Iminomethyl)phenol and 4-(iminomethyl)benzoic acid terminated aliphatic polyethers were obtained by conversion of Jeffamines with respective aromatic aldehydes. Mixtures of these polymers with polyamidines showed improved compatibility or even complete miscibility because of ionic complexes forme...

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Bibliographic Details
Published inMacromolecules Vol. 38; no. 19; pp. 8051 - 8057
Main Authors Mart, H, Oertel, U, Komber, H, Häussler, L, Böhme, F
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 20.09.2005
Subjects
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Thermal and thermodynamic properties
Condensation reaction
Polymer blends
Telechelic polymer
Ethylene oxide copolymer
Experimental study
Ionic interaction
Intermolecular interaction
Triblock copolymer
Chemical modification
Preparation
Hydroxyl group
Miscibility
Carboxyl group
Propylene oxide copolymer
Thermodynamic properties
Benzaldehyde derivatives
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Summary:4-(Iminomethyl)phenol and 4-(iminomethyl)benzoic acid terminated aliphatic polyethers were obtained by conversion of Jeffamines with respective aromatic aldehydes. Mixtures of these polymers with polyamidines showed improved compatibility or even complete miscibility because of ionic complexes formed between the end groups of the modified polyethers and the basic amidine groups. Depending on composition and molecular weight of the components, blends with two or one glass transitions were obtained. In the case of 4-(iminomethyl)phenol terminated polyethers, deprotonation of the end groups resulted in a distinct change of the UV/vis absorption spectrum. This spectral alteration is discussed with respect to quantification of interactions in polymer blends.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma050105s