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Self-assembly of block copolymers in selective solvents: Influence of relative block size on phase behavior
YKI – Ytkemiska institutet.
2000 (English)In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 16, 6839-6846 p.Article in journal (Refereed)
Abstract [en]

Two isothermal (25° C) phase diagrams with the block copolymer (EO)43(PO)16(EO)43 and the block copolymer (EO)5(PO)68(EO)5, respectively, in water and p-xylene are presented (EO is ethylene oxide and PO is propylene oxide). The copolymers have approximately the same molecular weight, albeit are unbalanced in PEO/PPO block ratio. The amounts and relative proportions of the solvents can modulate the resulting microstructures, although the phase sequence observed depends on the relative PEO/PPO block ratio. The copolymer rich in EO forms predominantly normal (oil-in-water) structures while the copolymer rich in PO forms predominantly reverse (water-in-oil) structures.

Place, publisher, year, edition, pages
2000. Vol. 16, 6839-6846 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27230OAI: oai:DiVA.org:ri-27230DiVA: diva2:1054234
Note
A1387Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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