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The mechanism and energy of activation of the melting of poly (ε‐caprolactone) with and without prior treatment with span 80
Author(s) -
FragaLópez Francisco,
Manuel MartínezAgeitos J.,
RodríguezNúñez Eugenio,
BlancoMendez José,
LuzardoÁlvarez Asteria,
CalvoCarnota Emilio,
JiménezCarrillo Lisbeth
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.34164
Subject(s) - differential scanning calorimetry , activation energy , caprolactone , nucleation , materials science , span (engineering) , melting temperature , life span , polymer chemistry , chemical engineering , thermodynamics , composite material , copolymer , polymer , chemistry , physics , engineering , gerontology , medicine , civil engineering
Differential scanning calorimetry (DSC) is used to determine the energy of activation and melting mechanism of PCL and of mixtures of PCL with the surfactant Span 80. The melting of poly(ε‐caprolactone) follows a nucleation and growth model with an Avrami exponent of 4. Addition of Span 80 reduces the energy of activation of this process. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011