Thermal transitions of benzene in copolymers and interpenetrating polymer networks based on hydrophilic and hydrophobic components: Experimental evidence of hydrophobic interaction

M. Salmerón Sánchez, M. Monleón Pradas, J. L. Gómez Ribelles

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Thermal transitions of benzene in a hydrophobic polymer network have been explained by us in terms of the phase diagram of the polymer-solvent system. In this work, we executed a similar study on copolymers and interpenetrating polymer networks (IPNs) with controllable hydrophilic/hydrophohic ratios. Copolymers and IPNs were swollen with different amounts of benzene and subjected to cooling and heating scans with differential scanning calorimetry (DSC). Synthesis of the IPNs was carried out in such a way that phase separation appeared, and three qualitatively different types of DSC thermograms were identified depending on the benzene content of IPN. Thermal transitions of benzene in the hydrophilic/hydrophobic copolymers can also be explained as a consequence of the phase diagram of the system, but an increase in the glass-transition temperature of the system can be correlated with the interactions among the hydrophilic groups of the copolymer.

Original languageEnglish
Pages (from-to)1713-1721
Number of pages9
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume41
Issue number14
DOIs
Publication statusPublished - Jun 11 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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