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Synthesis and characterization of new amphiphilic polyurethane compositions

✍ Scribed by W. Marconi; A. Martinelli; A. Piozzi

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
402 KB
Volume
31
Category
Article
ISSN
0014-3057

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✦ Synopsis

New segmented polyurethanes containing in the chain extender molecule (dihydroxyethyl-nhexadecylamine, DHHA) both a hydrophobic long alkyl group and a tertiary ammonium group (whose polarity was further increased by quaternization reaction), are described. In order to evaluate the influence of the chain extender content on the polymer properties, also polymers containing DHHA and I,4 butanediol at different molar ratios have been prepared. The obtained polymers were characterized by i.r., NMR, DSC, viscometry and water swelling measurements.

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## Abstract **Summary:** Hydrophobically substituted diallylamines bearing a hexyl, dodecyl, or octadecyl chain were synthesized and homopolymerized as hydrochlorides. Copolymerization of the diallylamines with maleic acid produces alternating copolymers. The copolymers behave as amphiphilic polyam