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Critical behavior of thermal phase transitions of iota-carrageenan in CaCl2 solution

Ozbek, Haluk; Pekcan, Onder


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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/95077</identifier>
  <creators>
    <creator>
      <creatorName>Ozbek, Haluk</creatorName>
      <givenName>Haluk</givenName>
      <familyName>Ozbek</familyName>
    </creator>
    <creator>
      <creatorName>Pekcan, Onder</creatorName>
      <givenName>Onder</givenName>
      <familyName>Pekcan</familyName>
    </creator>
  </creators>
  <titles>
    <title>Critical Behavior Of Thermal Phase Transitions Of Iota-Carrageenan In Cacl2 Solution</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2006</publicationYear>
  <dates>
    <date dateType="Issued">2006-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/95077</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.physa.2005.09.073</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">In situ photon transmission method was applied to study thermal phase transitions of t-carrageenan in CaCl2 solution. Coil-to-helix (c-h) and helix-to-dimer (h-d) transitions were detected upon cooling. An extra dimer-to-dimer (d-d) transition was observed as well during cooling at low-temperature region. Upon heating only dimer-to-helix (d-h) and helix-to-coil (h-c) transitions were detected. Photon transmission intensity, I-tr was monitored against temperature to determine several phase transitions and transition temperatures. It was observed that the c-h transition in i-carrageenan-CaCl2 system performs a crossover between 3D percolation to classical theory. Upon heating, the specific heat exponent over the d-h transition was extracted from the transmitted intensity data and was found to be 0.045. (c) 2005 Elsevier B.V. All rights reserved.</description>
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