CONCENTRATED AQUEOUS MICELLAR SOLUTIONS OF DIBLOCK COPOLY(OXYETHYLENEOXYBUTYLENE) E(41)B(8) - A STUDY OF PHASE-BEHAVIOR/

Authors
LI H YU GE PRICE C BOOTH C HECHT E HOFFMANN H
Citation
H. Li et al., CONCENTRATED AQUEOUS MICELLAR SOLUTIONS OF DIBLOCK COPOLY(OXYETHYLENEOXYBUTYLENE) E(41)B(8) - A STUDY OF PHASE-BEHAVIOR/, Macromolecules, 30(5), 1997, pp. 1347-1354
Citations number
36
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecules → ACNP
ISSN journal
00249297
Volume
30
Issue
5
Year of publication
1997
Pages
1347 - 1354
Database
ISI
SICI code
0024-9297(1997)30:5<1347:CAMSOD>2.0.ZU;2-4
Abstract
A phase diagram is presented for aqueous solutions of oxyethylene/oxyp ropylene (E/B) block copolymer E(41)B(8). The concentration range cove red is 5-70 wt %. The range of techniques used (tube inversion, polari zed-light microscopy, rheometry, and differential scanning calorimetry ) enabled regions to be assigned to micellar sol, isotropic soft, gel, isotropic cubic gel, and birefringent hexagonal gel. The soft gel is assigned to a fractal network formed from spherical micelles and highl y swollen by the water phase.