Source:http://linkedlifedata.com/resource/pubmed/id/21440903
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2011-4-11
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pubmed:abstractText |
Dilute aqueous solutions of d-PEO and PSSNa mixtures were studied by (2)H NMR spectroscopy and small-angle neutron scattering (SANS). The interactions between d-PEO and PSSNa were found to be negligible both in the presence and absence of NaCl. At very dilute concentration (0.7 mg mL(-1)), d-PEO chains were still found to be slightly collapsed at ambient temperature in water. Upon the addition of PSSNa, aggregates of d-PEO were observed with d-PEO coils loosely associated with each other. The average centre to centre distance between d-PEO coils, which was calculated from the maxima in SANS spectra, was similar to the size of the individual coils. The effect of a simple salt, NaCl, on d-PEO-PSSNa interaction was investigated. Salt addition induced a breakdown of the dilute d-PEO aggregates.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
1095-7103
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pubmed:author | |
pubmed:copyrightInfo |
Copyright © 2011 Elsevier Inc. All rights reserved.
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pubmed:issnType |
Electronic
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pubmed:day |
1
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pubmed:volume |
358
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
226-9
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pubmed:year |
2011
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pubmed:articleTitle |
A small-angle neutron scattering study of poly(ethylene oxide) microstructure in aqueous poly(styrenesulfonate sodium) solutions.
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pubmed:affiliation |
Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
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pubmed:publicationType |
Journal Article
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