Mostrar el registro sencillo del ítem

Solubilization of Phenol Derivatives in Polymer Micelles Formed by Cationic Block Copolymer

dc.contributor.authorFuentes I.
dc.contributor.authorSilva P.
dc.contributor.authorMartinez F.
dc.contributor.authorOlea A.F.
dc.date.accessioned2020-09-02T22:18:01Z
dc.date.available2020-09-02T22:18:01Z
dc.date.issued2017
dc.identifier10.1155/2017/7187324
dc.identifier.citation2017, , -
dc.identifier.issn16874110
dc.identifier.urihttps://hdl.handle.net/20.500.12728/4531
dc.descriptionThe aggregation of cationic block copolymers formed by polystyrene (PS) and poly(ethyl-4-vinylpyridine) (PS-b-PE4VP) was studied in aqueous solution. Diblock copolymers of PS and poly(4-vinylpyridine) were synthesized by sequential anionic polymerization using BuLi as initiator. Subsequently, the 4-vinylpyridine units were quaternized with ethyl bromide to obtain cationic PS-b-PE4VP block copolymers with different quaternization degree. The self-aggregation of cationic block copolymers was studied by fluorescence probing, whereas the morphology and size of polymer micelles were determined by transmission electronic microscopy. Results indicate that spherical micelles with sizes lower than 100 nm were formed, whereas their micropolarity decreases with increasing quaternization degree. The partition of phenols between the micellar and aqueous phase was studied by using the pseudo-phase model, and the results show that the partition coefficients increase with increasing length of the side alkyl chain and are larger for star micelles. These results are discussed in terms of three-region model. © 2017 Irma Fuentes et al.
dc.language.isoen
dc.publisherHindawi Limited
dc.titleSolubilization of Phenol Derivatives in Polymer Micelles Formed by Cationic Block Copolymer
dc.typeArticle


Ficheros en el ítem

Thumbnail
Nombre:
item_2-s2.0-85021646024.pdf
Tamaño:
2.048Kb
Formato:
PDF
Ver/

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem