Method for determining thickness, degree of cure and other prope

Radiant energy – Luminophor irradiation – Methods

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250302, 2504581, 2504611, G01N 2164

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active

056061714

ABSTRACT:
A method for monitoring a property of a polymeric mass such as a coating or film comprising the steps of adding a fluorescence probe compound capable of fluorescing to a polymeric composition which has the ability to undergo changes in microviscosity, the ratio of the intensity of the fluorescence emission of said compound at two wavelengths changing in response to said changes in said microviscosity of said composition; curing said composition; causing said compound to fluoresce; measuring the fluorescence of said compound; calculating the ratio of the intensities of fluorescence emission of said compound at two or more wavelengths; relating said ratio to the monitored property of said composition.

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Paczkowski et al., "New Fluorescence Probes for . . . Polymerization" J. Polymer Sc. Part A: Polymer Chem., 31, 841-846 (1993).
Paczkowski et al., "Following Polymerization Kinetics . . . Methodology", Macromolecules, 25 (1992).
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Loutfy, "High-Conversion Polymerization . . . Methacrylate", Macromolecules, 14, 270-275, (1981).

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