Preface
When a material is cooled down below the melting temperature, it either remains in
the amorphous state or it may (at least partially) crystallize. In both cases, the
molecular dynamics is dramatically modified. For glassy systems, the primary
relaxation (dynamic glass transition) slows down by typically 12 orders of magnitude. In contrast, if crystallization takes place, the relaxation strength shows a
sudden reduction and often an additional process is observed reflecting the constrained dynamics of the molecules or polymer segments at the surface of the
crystallites. It is evident that broadband dielectric spectroscopy is a versatile tool to
study such systems if polar moieties are involved.
With the present volume of Advances in Dielectrics, the editors aim to
demonstrate the potential of broadband dielectric spectroscopy in both fundamental
and applied researches on crystallization.
The editors are thankful to all contributors to this volume for the pleasant
and effective collaboration. Support from Springer Company and Series Editor,
F. Kremer, is gratefully acknowledged.
Madrid, Spain
Tiberio A. Ezquerra
February 2020
Aurora Nogales
v
When a material is cooled down below the melting temperature, it either remains in
the amorphous state or it may (at least partially) crystallize. In both cases, the
molecular dynamics is dramatically modified. For glassy systems, the primary
relaxation (dynamic glass transition) slows down by typically 12 orders of magnitude. In contrast, if crystallization takes place, the relaxation strength shows a
sudden reduction and often an additional process is observed reflecting the constrained dynamics of the molecules or polymer segments at the surface of the
crystallites. It is evident that broadband dielectric spectroscopy is a versatile tool to
study such systems if polar moieties are involved.
With the present volume of Advances in Dielectrics, the editors aim to
demonstrate the potential of broadband dielectric spectroscopy in both fundamental
and applied researches on crystallization.
The editors are thankful to all contributors to this volume for the pleasant
and effective collaboration. Support from Springer Company and Series Editor,
F. Kremer, is gratefully acknowledged.
Madrid, Spain
Tiberio A. Ezquerra
February 2020
Aurora Nogales
v