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Branched Polymers I (Paperback, Softcover reprint of the original 1st ed. 1999)
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Branched Polymers I (Paperback, Softcover reprint of the original 1st ed. 1999)
Series: Advances in Polymer Science, 142
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While books have been written on many topics of Polymer Science, no
compre hensive treatise on long chain branching has ever been
composed. This series of reviews in Volume 142 and 143 of Advances
in Polymer Science tries to fill this gap by highlighting active
areas of research on branched polymers. Long chain branching is a
phenomenon observed in synthetic polymers and in some natural
polysaccharides. It has long been recognized as a major mole cular
parameter of macromolecules. Its presence was first surmised by H.
Stau dinger and G. V. Schuh (Ber. 68, 2320, 1935). Interestingly,
their method of iden tification by means of the abnormal relation
between intrinsic viscosity and molecular weight has survived to
this day. Indeed, the most sophisticated method for analysis of
long chain branching uses size exclusion fractionation with the
simultaneous recording of mass, molecular weight and intrinsic
visco sity of the fractions. In the 1940s and 1950s, random
branching in polymers and its effect on their properties was
studied by Stockmayer, Flory, Zimm and many others. Their work
remains a milestone on the subject to this day. Flory dedicated
several chapters of his "Principles of Polymer Chemistry" to non
linear polymers. Especially important at that time was the view
that randomly branched polymers are inter mediates to polymeric
networks. Further developments in randomly branched polymers came
from the introduction of percolation theory. The modern aspec ts of
this topic are elaborated here in the chapter by W. Burchard.
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