Phase behavior and structure of an ABC triblock copolymer dissolved in selective solvent
(2003) In European Physical Journal E. Soft Matter 10(1). p.45-54- Abstract
- A mean-field lattice theory is applied to predict the self-assembly
into ordered structures of an ABC triblock copolymer in selective solvent. More specifically, the composition-temperature phase diagram has been constructed for the system (C)(14)(PO)(12)(EO)(17)/water, where C stands for methylene, PO for propylene oxide and EO for ethylene oxide. The model predicts thermotropic phase transitions between the ordered hexagonal, lamellar, reverse hexagonal, and reverse cubic phases, as well as the disordered phase. The thermotropic behavior is a result of the temperature dependence of water interaction with EO- and PO-segments. The lyotropic effect (caused by changing the solvent concentration) on the formation of different... (More) - A mean-field lattice theory is applied to predict the self-assembly
into ordered structures of an ABC triblock copolymer in selective solvent. More specifically, the composition-temperature phase diagram has been constructed for the system (C)(14)(PO)(12)(EO)(17)/water, where C stands for methylene, PO for propylene oxide and EO for ethylene oxide. The model predicts thermotropic phase transitions between the ordered hexagonal, lamellar, reverse hexagonal, and reverse cubic phases, as well as the disordered phase. The thermotropic behavior is a result of the temperature dependence of water interaction with EO- and PO-segments. The lyotropic effect (caused by changing the solvent concentration) on the formation of different structures has been found weak. The structure in the ordered phases is described by analyzing the species volume fraction profiles and the end segment and junction distributions. A "triple-layer" structure has been found for each of the ordered phases, with each layer rich in C-, PO-, and EO-segments, respectively. The blocks forming the layers
re not stretched. The dependence of the domain spacing on polymer volume
fraction and temperature is also
considered. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/122201
- author
- Shusharina, N P ; Alexandridis, P ; Linse, Per LU ; Balijepalli, S and Gruenbauer, H J M
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal E. Soft Matter
- volume
- 10
- issue
- 1
- pages
- 45 - 54
- publisher
- Springer
- external identifiers
-
- wos:000182407800006
- pmid:15011078
- scopus:0038575820
- ISSN
- 1292-8941
- DOI
- 10.1140/epje/e2003-00001-6
- language
- English
- LU publication?
- yes
- id
- 03ce2acc-b06b-456e-8899-f910736a1233 (old id 122201)
- date added to LUP
- 2016-04-01 17:09:31
- date last changed
- 2022-01-29 00:44:41
@article{03ce2acc-b06b-456e-8899-f910736a1233,
abstract = {{A mean-field lattice theory is applied to predict the self-assembly<br/><br>
into ordered structures of an ABC triblock copolymer in selective solvent. More specifically, the composition-temperature phase diagram has been constructed for the system (C)(14)(PO)(12)(EO)(17)/water, where C stands for methylene, PO for propylene oxide and EO for ethylene oxide. The model predicts thermotropic phase transitions between the ordered hexagonal, lamellar, reverse hexagonal, and reverse cubic phases, as well as the disordered phase. The thermotropic behavior is a result of the temperature dependence of water interaction with EO- and PO-segments. The lyotropic effect (caused by changing the solvent concentration) on the formation of different structures has been found weak. The structure in the ordered phases is described by analyzing the species volume fraction profiles and the end segment and junction distributions. A "triple-layer" structure has been found for each of the ordered phases, with each layer rich in C-, PO-, and EO-segments, respectively. The blocks forming the layers <br/><br>
re not stretched. The dependence of the domain spacing on polymer volume<br/><br>
fraction and temperature is also<br/><br>
considered.}},
author = {{Shusharina, N P and Alexandridis, P and Linse, Per and Balijepalli, S and Gruenbauer, H J M}},
issn = {{1292-8941}},
language = {{eng}},
number = {{1}},
pages = {{45--54}},
publisher = {{Springer}},
series = {{European Physical Journal E. Soft Matter}},
title = {{Phase behavior and structure of an ABC triblock copolymer dissolved in selective solvent}},
url = {{http://dx.doi.org/10.1140/epje/e2003-00001-6}},
doi = {{10.1140/epje/e2003-00001-6}},
volume = {{10}},
year = {{2003}},
}