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Book Review Kunststoff-Handbuch. Band 8. Polyester (Plastics Handbook Vol. 8. Polyesters). Edited by R. Vieweg and L

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task. For this reason the monograph, composed by one of
the pioneers of I3C resonance, is not only a comprehensive
reference work (at least until 1970) but, by virtue of its clear
arrangement, a pleasure to use. It will thus be a valuable
aid to all concerned with or interested in NMR spectroscopy.
Eberhard Breitmaier [NB 220 IE]
Electrochemistry of Cleaner Environments. Edited by J . O M .
Bockris. Plenum Press, New York-London 1972. 1st Edit.,
xiii, 296 pp., numerous figures, bound $ 26.-.
It is well known that protection of the environment is a
problem of growing concern to our modern industrial society.
What is probably less well known is that it has been recognized
for some years that a solution to practically all these problems
is to be expected primarily from electrochemistry. The present
book is thus very topical, and its readership should extend
far beyond the narrow field of electrochemistry.
The replacement of combustion-engined cars by electric cars
is unthinkable without electrochemical fuel cells or accumulators. Development is being concentrated on accumulators
at present. The contribution by E. H. Hietbrink et al. presents
a concise survey of this development, covering all the most
important points in full. It is not yet certain which of the
battery systems, e.g. the Pb/PbO,, Zn/MnO,, Fe/air, Liichlorine, or Na/sulfur battery, will one day become the current
source of choice for electric cars. One thing that is certain,
however, is that the production of electrical energy is not
itself a limiting factor.
The electrochemical treatment of effluents ( A . T Kuhn),
whether by electrolysis, electroflotation, or electrodialysis, and
the electrofiltration of gases ( E . C. Potter) are methods that
have been in industrial use for a long time and that will
certainly become more important in the future.
The contribution by 7: A . Henrie and R. E. Lindstrom points
out the possibility of digesting sulfide ores by treatment with
electrolytically produced hypochlorous acid. Instead of SOz,
which pollutes the atmosphere, this yields an aqueous solution
of the corresponding metal sulfate, which can be refined directly by electrolysis. Electrochemistry also provides many
methods for continuous trace analysis (CO, SO2, NO,, etc.),
which are discussed by B. D. Epstein.
R. P. Hammond and D. P. Gregory et al., in their very detailed,
forward-looking contributions, finally examine how the
rapidly growing demand for electrical energy can be met
and distributed. It. is thought that the former can be achieved
by fission or fusion power stations of the order of 10000MW,
floating on artificial islands in the ocean. For distances greater
than 800km, the transport of hydrogen, produced on the
spot by electrolysis of water, is found to be more economical
than the conduction of current. The pipe system filled with
hydrogen also serves as a welcome energy store for use as
a buffer. In the case of this “hydrogen economy”, the consumer
burns the hydrogen to produce heat without harmful exhaust
gases, while part of it is used to produce current in fuel
cells. A superabundance of electrical energy in the future
would also lead to an immense resurgence of electrochemistry,
i. e. the eltctrosynthesis of inorganic and organic compounds.
This point is unfortunately not discussed in the book, an
omission that is all the more surprising in view of the space
devoted to relatively obscure topics such as the increase in
the COz content of the atmosphere (a brilliantly written contribution by G. N . Plass). Several references are made to the
extensive use of hydrazine as a fuel in fuel cells, though in
all probability, even after the production costs have been
reduced, this fuel will be banned because of its toxicity (max.
permissible conc. =0.1 ppm). The metal-selective electrolytic
Anarw. Chrrn. infrrnaf. Edif. I
Val. 13 11974) I No. I2
processing of whole scrapped cars, which the editor seriously
discussed in his introduction, is another idea that will probably
never be realized.
These minor faults and imbalances in the distribution of topics
in no way detract from the solid overall impression made
by this work. It can be recommended to electrochemists and
environmental specialists, and also to a11 those who are interested in learning about forward-looking technical problems.
Fritz Beck [NB 228 IE]
Comprehensive Biochemistry. Edited by M . Florkin and E.
H . Srotz. Vol. 30. A History of Biochemistry. Part I: ProtoBiochemistry; Part I1 : From Proto-Biochemistry to Biochemistry. Elsevier Publishing Company, ArnsterdamLondon-New York 1972. 1st Edit., xvii, 343 pp., 64 figs.,
4 tables, bound 8 25.00.
As a reward, so to speak, after 29 volumes of exact biochemistry[*] (not yet published in full), this volume reads like a
novel. The shrewd, globe-trotting, broadly educated, and independently thinking editor Florkin has taken it upon himself
to write the history of biochemistry. Apart from his international personal connections, his own historical studies qualify
him to deal with the history of medicine at the crossroads
of European intellectual history, the Belgian contact zone
of many traditions since the middle ages. Here he presents
the first part of a history of development that shows how
the relationships between the philosophical concepts of the
observation of nature and the empirically reproducible physical laws interacted and molded one another from the pre-Socratics up to the vitalists, and how inductive research finally
overcame the dominance of a-priori, often esthetically motivated thought patterns and developed from Occam’s razor
to the scalpel of cell biology. However, the scientist, now
freed from the constraints of prejudice, readily falls once again
into new fetters of authority, and the chapters in which Florkin
deals with the cellular concept and Liebig’s theories of metabolism are particularly interesting and stimulating. This is especially true for the partisan-minded reader, who is provided
here with a detached overview. Outstandingly descriptive and
critically argumentative, the book is one of the most worthwhile and most generally instructive that could be found
in a scientific library. The author never yields to the cheap
temptation to present unconventional views without foundation, or to provoke by iconoclasm or vice versa.
One thus obtains new and reflectively inclining insights into
the relationships of the history of thought and the relativity
of our historical views. It is merely mentioned in passing
that the presentation of the book is also excellent. Thus it
is with great suspense, hopefully soon to be relieved, that
we await the two further volumes, which will set the keystone
that holds the arch of biochemistry together.
L.Jaenickr [NB 230 IE]
Kunststoff-Handbuch. Band 8. Polyester (Plastics Handbook,
Vol:8. Polyesters). Edited by R . Vieweg and L. Goerden.
Carl Hanser Verlag, Miinchen 1973. 1st Edit., xxvii, 775
pp., 498 figs., 152 tables, bound D M 275.-.
The present volume deals with three important plastics, i. e.
polycarbonates, polyalkylene terephthalates, and unsaturated
polyesters (UP resins), of which the first and last might well
have merited a special volume each. Nevertheless, it is justifiable to combine them in a single volume, since the polymers
in these three plastics are all built up via ester groups. On
the other hand the U P resins, as thermosets, have entirely
[*] Cf. Angew. Chem. internat. Edit. 10, 361 (1971).
825
different processing characteristics and applications from the
thermoplastic polycarbonates and polyalkylene terephthalates.
The basic division of the earlier volumes“] into constitution,
preparation, structure and properties, and processing and use
is retained for these three plastics. Special sections on cutting
agents, accelerators, inhibitors, glass-fiber reinforcement, and
fillers afe added in the case of the U P resins, corresponding
to their different processing. It would have been interesting
to learn more about the use of polycarbonates and UP resins,
e.g. in the USA. The reason why the section on polyalkylene
terephthalates is rather short is probably that this plastic
was still in the development stage during the preparation
of this volume. One should expect more in a new edition.
It is pleasing to note that a relatively large amount of space
has been given to processing and use in the case of the polycarbonates, though the scientific side has not been neglected
as a consequence. This is also true of the UP resins, but
the sections on aids and fillers, glass fibers, etc. are also very
informative.
The editors have managed to obtain the services of an outstanding specialist for each chapter, and the volume can therefore be regarded as very successful. Access to the original
literature and to patents is facilitated by the extensive bibliography following each chapter. The volume will prove to
be a good, fast source of instruction for processers, engineers,
architects, and electrical engineers, as well as for chemists
and physicists, and can be warmly recommended.
Otto Horn [NB 231 IE]
Die raurnlichestrukturorganischer Molekiile(The Steric Structure of Organic Molecules). By Charles C. Price. “taschentext” Vol. 10. Verlag Chemie, GmbH--Physik-Verlag,
Weinheim 1973. 1st Edit., x, 102 pp., 38 figs., 18 tables,
bound D M 12.80.
The aim of the “taschentext” series for chemistry and biology
students, “to find means for the more effective presentation
of fields, in which several disciplines are involved, and the
purpose of this book, to familiarize these students with the
fundamental factors that determine the principal properties
of materials made from natural o r synthetic polymers, are
very commendable.
However, the title (original edition: Geometry of Molecules,
1971) may mislead the beginner into thinking that the whole
of organic stereochemistry is dealt with here. The different
use of the term “structure” in this connection can be seen
from a comparison of the contents with those of books having
related titles, e. g. Coulson (The Shape and Structure of Molecules), Barrett (Die Struktur der Atome und. Molekule [The
Structure of Atoms and Molecules]), Barry/Barry (Die Struktur biologisch wichtiger Molekule [The Structure of Biologically Important Molecules]), Allinger/AZlinger (Strukturen organischer Molekiile [Structures of Organic Mole-.
cules]).
The material is divided in a logical manner into five chapters:
The Geometry of Small Molecules (19 pp.); Intermolecular
Forces (9 pp.); Dynamic Aspects of Molecular Geometry (23
pp.); Properties of Polymers (26 pp.); and Properties of Biopolymers (15 pp.).
The number of printing errors (pp. 15, 45, 55; 46, 52, 53,
84) is within normal limits. More objectionable are a number
of weak points that could have been avoided: A pair of electrons, for example, spends “more time” in the neighborhood
of the chlorine atom (p. 14).The title of the section “Asymmetric
pp.) and also
(Chiral) Molecules”, which is too short (1
~~
[*I
Cf Angew. Chem. internat. Edit. I f . 947 (1972)
826
tedious (compare the lively chapter “Molecular Dissymmetry”
in Barry/Barry, see above), is didactically by no means the
best, nor are the unusual arrangement of the lactic acid formulas (p. 17) and the representation of inversion at the amine
nitrogen (p. 18).The name Perlon should at least be mentioned
in the discussion of 6,6-nylon (p. 69). The designation trans
should not be applied to single bonds (p. 52). A note about
the non-drop-like shape of p-orbitals would have been useful
on p. 15. In the drawings of molecular models (pp. 16, 17),
the bonds lying in the same plane should have been drawn
as lines of equal thickness; the striped bonds are disturbing.
The word “gefaltet” (folded) should have been used instead
of “gebuckelt” (buckled) (cyclopentane ring, p. 45). On p.
47, orbital and molecular models are twisted in relation
to each other, though they are placed together for comparison.
On the same page there are formulas and corresponding projections that are rather disordered in space.
However, these weaknesses in a few details are more than
outweighed by the convincing explanations in the text, which
arouse understanding of and above all interest in the “giant
molecules”.
On the whole, the book fills a gap. The combination of elementary stereochemistry, polymer chemistry, and biochemistry
in such a small space may be regarded as successful. This
introduction can be recommended not only to those addressed
in the foreword, but also to those who are fully trained in
neighboring disciplines.
Fritz Vogtle [NB 232 IE]
Elektrotauchlackierung (Electropainting). By W. Ma&.
Verlag Chemie GmbH, Weinheim 1974.1st Edit., x, 338 pp.,
133 figures, 32 tables, bound DM 98.,
It has not taken many years for electropainting to find wide
application as an economic process. Numerous publications have appeared during this time, dealing with the development of coating materials and the latest situation regarding
plant and engineering. In the present book W M a c h has
evaluated a considerable part of this literature and worked
it up into a comprehensive review of this modern technique.
He deals here with the physical and chemical. principles of
. anodic deposition of paint, the importance of voltage and
current strength, the throwing power, pretreatment of the
metal, the composition and testing of the varnish materials,
special fields of application, plant and procedures, and economic considerations. In conclusion, there is an extensive review
of patents. Thus, the book is of equal interest to users and
to manufacturers of paints and plants.
The mechanism of film formation by means of electropainting
and the influence of the various paint and deposition parameters on the resulting coating are not yet fully understood.
The section of the book dealing with this subject adds nothing
to existing knowledge : the sometimes inadmissible generalizations of experimental results on specialized varnish systems
that are found in the literature cited are here reported without
discussion.
The chapters about pretreatment of the metal before electrodeposition varnishing are very detailed. The author’s extensive
experience with metal cleaning and phosphatizing makes
this part of the book a valuable source of information for
both users and paint manufacturers. It is disturbing that the
pretreatment process of only one supplier is cited. The chapters
about paint formulation and supervision of the immersion
bath are brief, and are necessarily incomplete for a process
whose further development is still under active study.
The descriptions of plant and procedure in electropainting
with their numerous illustrations and examples of application,
provide a good review of possible applications of the process. Many technical details of the plants are of interest to
Angew. Chem. internat. Edit.
Voi. 13 (1974) 1 No. 12
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