On Growth and Form pp 227-230 | Cite as
Branched Polymers
Abstract
By poly condensing multifunctional units one may synthesize randomly branched polymers. Unlike aggregates that are discussed elsewhere,1–3 these are not rigid but are very flexible. In the following we would like to discuss the conformation of these randomly branched polymers, or animals. One difficulty in this discussion resides in the synthesis itself, which takes place usually in a concentrated solution and leads to a wide distribution of molecular weights. Thus we will first discuss the conformation of a single animal, and later we will take into account the molecular weight distribution and show that it has important consequences on the results of any measurements. We will focus mainly on the exponents which appear in different power laws. All this discussion will be in the framework of the Flory theory which, although not correct, is usually a very good approximation.
Keywords
Fractal Dimension Molecular Weight Distribution Exact Condition Weight Average Molecular Weight Cluster Size DistributionPreview
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