Tensioactive Properties of Poly([R,S]-β-malic acid-b-ε-caprolactone) Diblock Copolymers in Aqueous Solution

Olivier Coulembier, Philippe Degée, Philippe Guérin, Philippe Dubois

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

Résumé

Well-defined amphiphilic poly(β-malic acid-b-ε-caprolactone) diblock copolymers with tunable hydrophobic content have been synthesized. For the sake of comparison, amphiphilic α-lauryl, ω-methyl poly(β-malic acid) has been synthesized as well. The stability of the block copolymers in aqueous solutions against hydrolysis has been demonstrated, at least within a period of time long enough to rely on tensioactive measurements by the pendant drop method. The critical micellar concentration of such amphiphilic (co)polymers has been determined by dynamic light scattering. The effect of pH, temperature, salt (NaCl) addition, and copolymer composition has been investigated. Whatever the copolymer composition, it has been shown that increasing pH from 2.2 to 8.5 increases surface tension in water. In contrast, reducing the length of the hydrophobic block lowers the surface tension in water but also the mean diameter of micellar structures.

langue originaleAnglais
Pages (de - à)8661-8666
Nombre de pages6
journalLangmuir
Volume19
Numéro de publication21
Les DOIs
Etat de la publicationPublié - 14 oct. 2003
Modification externeOui

Empreinte digitale Examiner les sujets de recherche de « Tensioactive Properties of Poly([R,S]-β-malic acid-b-ε-caprolactone) Diblock Copolymers in Aqueous Solution ». Ensemble, ils forment une empreinte digitale unique.

Contient cette citation