Handbook of Solvents - George Wypych - ChemTech - Ventech!

570 S. Bistac, M. Brogly
Figure 10.1.9 shows a good correlation between carbonyl stretching frequency as determined
by FTIR and the dispersion contribution of surface tension of the solvent.
The above shows a good correspondence between the data measured by different
methods. This was also shown by a theoretical analysis of the effect of acid-base interactions
on the aggregation of PMMA. 14 But there is as yet no universal theory for the characterization
of acid-base interaction.
The following Sections show specific applications of acid-base interactions and present
data on solvents applied to various phenomena in which acid base interaction is
important.
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10.2 EFFECT OF POLYMER/SOLVENT ACID-BASE INTERACTIONS:
RELEVANCE TO THE AGGREGATION OF PMMA
S. Bistac, M. Brogly
Institut de Chimie des Surfaces et Interfaces
ICSI - CNRS, MULHOUSE France
10.2.1 RECENT CONCEPTS IN ACID-BASE INTERACTIONS
Polymer solvent interactions determine several properties, such as, solubility, solvent retention,
plasticizer action, wettability, adsorption and adhesion. The solubility parameter is an
important criterion for the choice of solvents. However, acid-basic characters of both solvent
and polymer are also determinant parameters, which can affect the solution and final
film properties. This part, devoted to the influence of acid-base interactions on the aggregation
of poly(methyl methacrylate) will first present some recent concepts in acid-base interactions,
followed by two practical examples based on experimental results obtained for
PMMA/solvent systems.