Paula Carretero, Serena Molina, Ricardo Sandín, Juan Rodríguez-Hernández, Angel E. Lozano and Javier de Abajo Hydrophilic polyisophthalamides containing poly(ethylene oxide) side chains: Synthesis, characterization, and physical properties Journal of Polymer Science Part A: Polymer Chemistry 51
Polyisophthalamides with side chains of polyethylene oxide (PEO) were prepared by incorporating PEO sequences onto poly(5-hydroxy-isophthalamide)s. The polymers behaved as graft copolymers of polyisophthalamide (PIPA) and PEO, covering a wide range of ratios of PIPA/PEO. For high contents of PEO, the materials could absorb water in high amounts and they tended to micellize in polar solvents. Gravimetric methods and water contact angle measurements were used to quantify the hydrophilicity of the current PEO-modified polyisophthalamides.
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