close

Вход

Забыли?

вход по аккаунту

?

Magnetism Molecules to Materials V. Edited by Joel S. Miller and Marc Drillon

код для вставкиСкачать
Books
Applied Surfactants
Principles and
Applications. By
Tharwat F. Tadros.
Wiley-VCH, Weinheim 2005.
634 pp., hardcover,
E 199.00.—ISBN
3-527-30629-3
Surfactants find an enormous
number of applications, varying from
large-scale uses to applications on a milligram scale, as in gene delivery experiments. This book provides a rich,
although not comprehensive, source of
information, especially for the industrial
chemist who wishes to learn more about
this fascinating world. Because of the
wide coverage of topics, one would
have expected a text written by a
number of different specialists. This is
not the case. Professor Tadros is the
single author of 15 chapters, in total
634 pages, full of useful tables, figures,
and helpful pictures. After three introductory chapters, which summarize the
classification, physical chemistry, and
phase behavior of surfactants in solution, the remaining 12 chapters consider
specific applications, with brief summaries of the basic principles on which
these applications depend. These topics
include adsorption of surfactants at air/
liquid and liquid/liquid interfaces
(Chapter 4), adsorption at solid/liquid
interfaces (Chapter 5), emulsions and
their stabilization (Chapter 6), dispersants and stabilization of suspensions
(Chapter 7), foams (Chapter 8), nanoemulsions (Chapter 9), microemulsions
(Chapter 10), wetting, spreading, and
5922
adhesion (Chapter 11), personal care
and cosmetics (Chapter 12), pharmaceutical formulations (Chapter 13),
agrochemicals (Chapter 14), and the
food industry (Chapter 15). The subject
index (only 31/2 pages) is certainly too
brief for a book of this size. There is
no author index.
My main criticism of this otherwise
helpful book is that the bibliography of
each chapter is too brief and outdated
(for example, Chapter 4 has 12 references, two of which are from 1863 and
1883, and the average year of the references is 1931). This is recognized by
the author in the preface. He apparently
relies completely on his own previous
experience, and finds that sufficient for
the present introductory text. Also, the
latest developments in surfactant applications are just ignored or only touched
upon very briefly. All this is a considerable disadvantage for the modern reader,
but one tends to forgive the author
because of the enormously broad range
of topics that is covered.
Physical chemical theories and background material are often not introduced in a systematic way. For example,
the packing parameter approach is
described and employed in several different chapters, but nowhere is it adequately introduced and supported by literature references. That also applies to
other topics, such as the hydrophilic–lipophilic balance (HLB) concept and Ostwald ripening. Even more importantly,
phase diagrams are incorrect in several
cases and are taken from old literature.
Although I cannot adequately judge
the quality and relevance of all topics
treated in this book, my impression is
that this work will be consulted frequently by the practicing industrial surfactant chemist.
The book is well produced, although
the structural formulas are often badly
drawn and sometimes contain errors.
There appear to be relatively few
errors in the text.
Jan B. F. N. Engberts
Stratingh Institute
Universit+t Groningen (The Netherlands)
4 2005 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Magnetism: Molecules to
Materials V
Edited by Joel S.
Miller and Marc
Drillon. Wiley-VCH,
Weinheim 2005.
381 pp., hardcover,
E 149.00.—ISBN
3-527-30665-X
This book is the fifth volume of a
new series on recent developments in
the area of magnetism. It can be stated
at once that this latest volume, like its
predecessors, contains an excellent collection of topics that are of current interest, and provides further confirmation of
the renaissance that has been seen
during the last few years in this area of
research, which had been regarded as
almost a closed subject. As indicated
by the subtitle of the series, Molecules
to Materials, the central theme is the
relationship between the molecular
starting-point and the resulting materials properties. Both this volume and its
immediate predecessor, Volume IV,
differ in conception from the first three
volumes, insofar as these latest two are
not devoted to one specific topic.
Instead, the individual chapters review
recent developments in different areas
of the very broad spectrum of research
topics in this interdisciplinary field.
Volume V consists of ten articles dealing
with both synthetic and theoretical
aspects, with special emphasis on the
materials properties and their relationship to molecular structure.
The volume contains three articles
that report on magnetic materials
made by assembling molecular building
blocks, with an emphasis on combining
these in such a way as to give special
properties. The descriptions cover electrically conducting materials and others
that are based on chiral building
blocks, which gives materials with nonlinear magnetooptical properties. Nanoporous molecular magnetic materials
are also described, which is still a comparatively new area of research. In two
other articles the focus is on molecular
bridging units known to transmit magAngew. Chem. Int. Ed. 2005, 44, 5922 – 5923
Angewandte
Chemie
netic interaction. One such class of molecules is the inorganic evergreen Prussian Blue and its analogues, while
another is the class of coordination compounds based on the dicyanamide anion.
In both cases, very interesting magnetic
ordering phenomena are observed; an
example of this can be seen in the illustration on the book<s dustcover.
Although the Prussian Blue analogues
have long been known, they are especially interesting in this context, as they
provide an impressive illustration of
the possibilities of applying molecular
concepts to the design of magnetic
materials. Their most striking characteristic is that the stoichiometry of the
metal ions can be varied almost at will,
thus altering the physical properties of
the materials. This has already led to
some innovations, including high-temperature magnets and materials with
photoinduced magnetic effects.
Two other articles discuss in detail
the class of magnetic materials based
on metallocenes. However, in parts of
Angew. Chem. Int. Ed. 2005, 44, 5922 – 5923
these chapters a better editorial coordination would have been desirable.
Another short article is devoted to the
magnetic properties of molecular compounds formed by lanthanoid(iii) ions.
The volume is completed by two articles
that are concerned with the theoretical
understanding of magnetic properties.
The topics discussed are the application
of Monte Carlo simulations to the analysis of magnetic properties, and the
application of scaling theory to lowdimensional magnetic systems such as
ferromagnetic Heisenberg chains.
The detailed list of contents gives a
very good overview of the topics covered in the volume, and is a much
better guide to using the work than the
rather meager subject index. That is certainly a consequence of the problems
associated with the large number of
authors, as also is the lack of consistency
that one finds in several places (for
example, in the style of the figures and
the choice of units for the data therein).
Also, one can see from the quality of
some of the figures that they were not
produced specially for this volume, and
in a few cases the reproduction of originally colored illustrations has resulted in
figures that are difficult to understand.
The small instances of overlap between
chapters can be excused, and are sometimes even a positive feature, since otherwise the basic purpose of the series,
to present an up-to-date picture of current areas of research in the form of
individual contributions, could not be
achieved.
This fifth volume, like its predecessors, is an important reference source
for every research group working in
the area of magnetism, and therefore it
should be available in their libraries.
Winfried Plass
Anorganische Chemie II
Friedrich-Schiller-Universit+t Jena
(Germany)
DOI: 10.1002/anie.200585292
4 2005 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
www.angewandte.org
5923
Документ
Категория
Без категории
Просмотров
2
Размер файла
75 Кб
Теги
magnetism, joel, miller, molecules, edited, drillon, material, march
1/--страниц
Пожаловаться на содержимое документа