Small angle neutron scattering study of the structure and hydration of polyoxyethylene‐ block ‐polyoxybutylene in aqueous solution | Zendy

Fairclough J Patrick A | Zendy; Norman Alexander Iain | Zendy; Shaw Benjamin | Zendy; Nace V Mark | Zendy; Heenan Richard K | Zendy

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Small angle neutron scattering study of the structure and hydration of polyoxyethylene‐ block ‐polyoxybutylene in aqueous solution

Author(s) -

Fairclough J Patrick A,

Norman Alexander Iain,

Shaw Benjamin,

Nace V Mark,

Heenan Richard K

Publication year - 2006

Publication title -

polymer international

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.592

H-Index - 105

eISSN - 1097-0126

pISSN - 0959-8103

DOI - 10.1002/pi.2044

Subject(s) - micelle , neutron scattering , aqueous solution , small angle neutron scattering , hydrodynamic radius , radius , copolymer , scattering , materials science , phase (matter) , block (permutation group theory) , neutron , crystallography , chemistry , polymer chemistry , polymer , physics , organic chemistry , optics , composite material , geometry , mathematics , computer security , computer science , quantum mechanics

The micellar structure of a polyoxyethylene‐ block ‐polyoxybutylene diblock copolymer (E 18 B 10 ; E = (OCH 2 CH 2 ); B = OCH 2 CH(CH 2 CH 3 )) in water was studied by small angle neutron scattering. Results show a polydisperse spherical micelles at temperatures below 45 °C, a possible mixed phase at 45 °C and flexible worm‐like micelles at 65 °C. The spherical micelles at 25 and 35 °C have radii of 39 and 40 Å and degrees of hydration of 28% and 26%, respectively. The worm‐like micelles have a total length of approximately 1850 Å, with segment lengths of 123 Å, a core radius, R ax = 30 Å and hydration of 23%, at 65 °C. Copyright © 2006 Society of Chemical Industry

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