SANS AND SAXS STUDIES OF PLURONIC L64 IN CONCENTRATED-SOLUTION

Authors
WU GW LIU LZ BUU VB CHU B SCHNEIDER DK
Citation
Gw. Wu et al., SANS AND SAXS STUDIES OF PLURONIC L64 IN CONCENTRATED-SOLUTION, Physica. A, 231(1-3), 1996, pp. 73-81
Citations number
33
Categorie Soggetti
Physics
Journal title
Physica. A → ACNP
ISSN journal
03784371
Volume
231
Issue
1-3
Year of publication
1996
Pages
73 - 81
Database
ISI
SICI code
0378-4371(1996)231:1-3<73:SASSOP>2.0.ZU;2-K
Abstract
The supramolecular structure, formed by a PEO-PPO-PEO copolymer, PEO(1 3)PPO(30)- PEO(13) or Pluronic L64, in mixtures of xylene/water, was i nvestigated by small-angle X-ray scattering over a temperature range o f 25-60 degrees C and by small-angle neutron scattering over a tempera ture range of 13-29 degrees C. The large aggregates had a hexagonally packed cylindrical structure with the interdomain spacing being in the order of similar to 10 nm. The interdomain spacing increased with inc reasing amount of solubilized water in the large aggregates.