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Rheological study of the kinetics of photoinitiated free radical polymerizations with the quartz microbalance

✍ Scribed by Peter Ottersbach; Klaus Lennarz; Joachim Bargon

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
299 KB
Volume
195
Category
Article
ISSN
1022-1352

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✦ Synopsis

Abstract

Using a quartz microbalance operating in solutions, a very sensitive determination of the increasing viscosity during the very early stages of polymerization reactions is possible in a continuous fashion. Kinetic data have been obtained for methyl methacrylate as the monomer and benzoin, its methyl ether, and 2,2‐dimethoxy‐2‐phenylacetophenone as photoinitiators using an excimer laser operating at 351 nm. This in situ method represents a very sensitive, convenient, and inexpensive technique for obtaining kinetic data under a variety of boundary conditions including photopolymerization, the example outlined here.

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