|
Showing 1 - 2 of
2 matches in All Departments
'Many bodies ... have the property of exerting on other bodies an
action which is very different from chemical affinity. By means of
this action they produce decomposition in bodies, and form new
compounds into the composition of which they do not enter. This new
power, hitherto unknown, is common both in organic and inorganic
nature ... I shall ... call it catalytic power. I shall also call
catalysis the decomposition of bodies by this force. J. J.
Berzelius (1836) Edinburgh New Philosophical Journal, XXI, 223.
This quotation marks the origin of the term catalysis in a
scientific context. The earlier literary meaning was 'the breakdown
in law and order'. Perhaps Berzelius' train of thought was that
catalytic action appeared to defy the scientific laws and
principles as formulated in 1836. It is remarkable that this
quotation, with some substitution of modern wording, can represent
a fair summary of our present view of catalysis. There is now
recognized a broad division of catalytic systems under the headings
homogeneous and heterogeneous. In the former the catalyst is
generally a dissolved species whilst in the latter it is usually an
insoluble solid, with the action restricted to the surface. This
book concerns hetero geneous catalysis, which is the more important
for industrial applications."
Taking the most common polymers this undergraduate textbook describes the basic principles of polymer science. Using polymers with which students will be familiar, for example polystyrene and PVC, this book relates the structure of polymers to their properties, and explains how and their properties can be tailored for a particular use.
|
You may like...
Loot
Nadine Gordimer
Paperback
(2)
R391
R362
Discovery Miles 3 620
|
Email address subscribed successfully.
A activation email has been sent to you.
Please click the link in that email to activate your subscription.