Linked Life Data

19616785

Source:http://linkedlifedata.com/resource/pubmed/id/19616785

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2009-8-28
pubmed:abstractText
Cyclic voltammetric (CV) techniques have been employed to study the mixed micellar behavior of binary mixtures of triblock polymers (TBP) such as F127+P85, F127+P85, F88+P85, and F88+P123 using 2,2,6,6-tetramethyl-1-piperidinyloxy (Tempo) as an electroactive probe. Critical micellar concentration (cmc) has been obtained for pure triblock polymers and their mixed systems from the plots of peak current (ip) variation versus the total concentration. Diffusion coefficients of the electroactive species have been determined from the Randles-Sevcik equation. The interaction parameter (beta) for the mixed micelles was obtained from the regular solution theory. The values of beta suggest that the synergism does exist especially with the F88+P123 system. Cloud point measurements have also been made on the binary mixtures of triblock polymers following similar mixing criteria. An effort has been made to correlate the micellar behavior and phase separation (cloud point) phenomenon. From the correlation, it can be concluded that in the systems studied, an increase in cmc increases the cloud point of mixed systems of triblock polymers.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1095-7103
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
338
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
420-7
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Study of micellar and phase separation behavior of mixed systems of triblock polymers.
pubmed:affiliation
Department of Chemistry, Guru Nanak Dev University, Amritsar 143 005, India.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't