Theta solvent: Difference between revisions
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Carl McBride (talk | contribs) (New page: A '''theta solvent''' is the name for a condition (sometimes known as the Flory condition) rather than an actual solvent. At the ''theta point'', in the words of Paul Fl...) |
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A '''theta solvent''' is the name for a condition (sometimes known as the [[Paul J. Flory |Flory]] condition) rather than an actual solvent. At the ''theta point'', in the words of Paul Flory: "''excluded volume interactions are neutralized''." | A '''theta solvent''' is the name for a condition (sometimes known as the [[Paul J. Flory |Flory]] condition) rather than an actual solvent. At the ''theta point'', in the words of Paul Flory: "''excluded volume interactions are neutralized''." | ||
An excluded volume of zero connotes a [[second virial coefficient]] of zero. | An excluded volume of zero connotes a [[second virial coefficient]] of zero. The theta state also corresponds to the highest upper critical temperature of a given polymer-solvent system. | ||
==References== | ==References== | ||
#[http://nobelprize.org/nobel_prizes/chemistry/laureates/1974/flory-lecture.html Paul J. Flory Nobel Lecture] | #[http://nobelprize.org/nobel_prizes/chemistry/laureates/1974/flory-lecture.html Paul J. Flory Nobel Lecture] | ||
[[category: polymers]] | [[category: polymers]] | ||
Revision as of 12:03, 9 August 2007
A theta solvent is the name for a condition (sometimes known as the Flory condition) rather than an actual solvent. At the theta point, in the words of Paul Flory: "excluded volume interactions are neutralized." An excluded volume of zero connotes a second virial coefficient of zero. The theta state also corresponds to the highest upper critical temperature of a given polymer-solvent system.